I understand your problem. Women are an easy way to tell yourself "I gotta do this!". Doing it for yourself might be a bit misleading, I prefer living for yourself. If you're just worried about not being alpha, you shouldn't second guess yourself. Being a beta is bad because beta guys often don't realize what they need to do to feel like a man, not because every man wants to feel that way. Obviously people on TRP are here because they'd like to feel alpha and live like one. That doesn't necessarily mean you have to live your life set in stone according to every tenant. If girls are what motivates you to be a better man right now, I say keep using it. If you're truly upset about it your priorities will naturally change anyways. Nitpicking on whether something like this not makes you alpha is pointless.

Find your mission.

There is a very good reason why learned men all arrive at the same conclusion (which is "find your mission"). People like Jordan Peterson and all kinds of men in the manosphere, plus all the philosophers have this in common - they realise that until you find your mission, you will be lost (you sound lost right now). It's one of the reasons why Andrew Tate is such a waste of time - his mission is to take steroids, get tatts, buy Lambos and fuck chicks. He has no mission and doesn't understand what a mission is.

Find your mission. Its because so many men get lost in life. They bounce around from woman to woman, job to job, go to the gym, buy cars, don't know what they are doing. They end up depressed at the emptiness of life. They watch sports, drink beer, get drunk, get laid.... nothing helps. The world is an empty, lonely and pointless place. Suicide is the leading cause of men under 50 in the west. And most men kill themselves NOT because they are depressed - they hit the off switch because life is pointless.

You need to find your mission. You said yourself, that your 'interests change yearly'. Interests are not missions. I love my motorcycle, but its not my mission.

Find your mission. Devote some thinking time to it. What do you want from life? Start backwards. Where do you want to be buried? Who do you want (if anyone) to visit your grave when you are gone?

Find your mission. Do you want to have kids? What kind of life would you like to give your kids (if you wanted some)? Do you want to achieve something, big or small? Do you want to learn something? Do you want to contribute to the sum of human knowledge? Do you want to help others? What the fuck is your mission? why are you here?

Find your mission. Time is limited. Every day you wake up is another day taken from your account. What did you do yesterday to further you mission? Nothing? Ok - what about today then, What are you going to do today to further your mission?

If you did one thing today for your mission, it could be this - sit down with yourself and spend 45 minutes writing in a note pad - bullet points is fine - about finding your mission. At least when you wake up tomorrow morning, you can answer your daily question about what you did yesterday to further your mission. You can say

"I spent 45 mins on findinig my mission. That was step one. Today i will do step 2"

Find your mission. Let me know how you get on.

It's easy. Understand the nature of women. I'll give you an example:

You're buff and shredded and looking good and you go out and snag you a woman or two or three.
Eventually, you might find one to LTR maybe settle down with.
Now that she's got you, she wants to keep you.
That means having to eliminate the competition.
There's two ways to do this: Either physically fight off every other woman that tries to steal you away, or make it so that you're not attractive to them.
Since the latter is the least amount of work, she'll start manipulating you in to things like eating less healthy foods and skipping days at the gym.
She'll feed your ego and say things like, "I like a man with a bit of a dad bod," and having suckered you in, you fall for it every time.
A few years down the road, you've turned into a fat blob and she's no longer attracted to you.
She dumps you and moves on to the next sucker, and you're stuck having to start over at square one, years of effort gone down the drain.
On top of that, the older you get, the harder it is to snap back. Not that it can't be done, just takes longer than when you were younger.

And that's just one woman. How many times do you think you can go through that over the course of your life?

I think its impossible unless you are a castrated man.

But lemme give my two cents: Where I work, i'm the youngest. I'm 32. There are 30ish old guys who are dating. But let's jump to the majority: Guys there are 45+.

EVERYTHING you read in RP as "such is their nature" about woman, i saw happening to my older colleagues, or heard the stories of those who had already passed through this. I've seen CORRUPT CHEATY DUDES banging/marrying HOT BITCHES beucase Status/Looks/Money. I've seen a client giving a blowjob to one of the bosses in his car. They had just met. She was in the place for 30 minutes total, sucked him in the parking and took a bus back home.

When i arrived 3 years ago, most of those guys were divorced. One is still married, but he calls sex with his wife a "slightly better masturbation". I've seen some of them going through divorces, having their kids taken away, paying child support and sent back to their mother houses at forty. THEY ALL SAY "She started saying i had changed."

Why i'm saying this? Because that's their nature: To be a storm in your life, make you feel safe to slip. They'll do whatever it takes to take you of your rock state. But if you do, they'll suck your self respect and self steem out of you and go away. In my own experience, you can literally see those shiny eyes the girl had on you becoming a dead eye. My old partner even said it to me: "this girl is trying to change you and you are going along. She'll dump you anyway". Unfortunatly, can't go back now.

TL,DR: DON'T FALL BACK FOR A GIRL. If she can't keep up, dump, you are not their father. In your case, go date gym girls and dietitians. Lucky you.

By locking in to your mission. Your contribution to this world. Fully focus on developing both your internal & external attributes, and realize women are just a side effect of excelling.

There's nothing wrong with wanting to appeal to women. The problem comes when you focus on women and become outcome-dependent.

To answer your question of "How can I stop putting the focus on women", the answer is about changing who benefits from your actions.

For example, I like to lift. Does it help me get laid? You fucking bet, but the outcome that I'm looking for isn't female validation - the outcome that I care about is internal (in this case, being stronger). I make money, but the outcome I care about isn't using it to get pussy - I focus on investing.

It's when you shift the focus of your efforts and the satisfaction to an internal one that the external sources of validation matter less.

No one can tell you what your purpose in life is. Only you can tell.

Well it sounds like you're still pretty young. You should be focused on stacking cash. Muscle is only one part of the equation. You might also try to get into social circles of other guys that are in a similar position as you. Have some guy friends. Do guy things.