Although you're getting plenty of good advice here, make sure you checkout /r/fitness too. Their wiki is extensive.

Test your T dude.

Also do use this calculator:

https://drive.google.com/file/d/0B8EbfzFB0mBrMGJ6V2N5QWNfeTg/view

I'm a hardgainer like you. You have to use this calculator. The guys you will read about on the Internet or make friends with in the gym, they can eat like 3500 calories at 90kg and be gaining since it's already a surplus for them. But you and I, you'll soon notice why you've been skinny all your life, it's because your body uses almost twice as much food. For example my TDEE at 70kg is 3600 calories. I know people whose TDEE at 70kg is 2300 cals. You get the point.

Lift, start asap. Diet with high protein and a calorie surplus. Drink your calories if you don't like eating. Sleep a lot.

What is the best way to gain weight asap? It is really hard for me to eat as much as possible because... I simply do not "enjoy" eating.

If getting jacked was easy, everyone would be huge.

Also - I do not lift YET

I don't understand the point of this post.

"Hey guys, I don't want to do the work, how do I get the results without actually putting in any effort?"

I think I should gain some weight before I start lifting, is this correct?

Yes, if you want to get fat. You're not going to build muscle if you're not lifting. So if you're gaining weight and not working out, you're getting fat.

Lift asap. Dont go too heavy at first. Squad is not very safe for uneducated. Dont use barbell(squad, deadlift, bench press) untill you learn the tecnique.

Eat as much as you can. 3000calories is enough. Take at least 60g protein a day. Dont eat much junk and sweet stuff. They are harmfull for blood vessels and cause diabetes.

Mini advice: 1 L milk have 600calorie, 30gr protein and vit D. But it may make kidney stones at long run.

GOMAD

Weight gainers. It’s like $50 on Amazon. Get the most calories you can.

Also - I do not lift YET, I think I should gain some weight before I start lifting, is this correct?

NO. That is not correct.

1. Doctor clearance 2. Learn the basics of diet and lifting.

You are too much of a beginner for me to give specific advice. You need to advance on the learning curve, and work very hard.

Start lifting and I'd advice you to start learning cooking. Everything you cook yourself tastes better, plus you start learning what you like eating.

Eating a lot of food is something you have to train. If you don't gain weight -> eat more. It's that simple.

Year ago I had the same. I was 6,3 on 75kg.. I don't like eating in copious amounts and I do not like eating that much in general. I started working out and eating every 3 hours, but in modest portions.. Now a year later I am hungry all the time, just hit 87 kg and counting.. Find a way in which you either enjoy eating or which makes it bearable.. For me, the every 3 hours in modest portions worked like a charm.. Still gaining, got some nice definition and working on the cut now.. The good part is that your gains will be very visible and thus motivating.. Just keep at it. Also, I drank, used drugs, had 2 weeks break in between.. Whatever and still gaining.. Keep at it and find that rhythm for your meals

Just start lifting. You may not want or enjoy eating now (sedetary) but you will once your body starts demanding food.

Diet is your biggest hurdle. Using a creatine supplement along with working out will add a handful of pounds of water weight and make your muscles appear more full.

Check your T levels after a few months. You may be on the low side, but I'm willing to bet it's because your body isn't producing healthy levels due to being inactive. Squats will add the most mass along with T levels.

As you eat more, your stomach expands a slight bit and it becones easier to eat more than usual

Eat and lift. But most importantly eat.

Find foods you do enjoy. One good for muscle mass/weight gain is BACON. If you don't enjoy bacon... you're beyond hope. :P

I was same height and weight as you. I had to take weight gainer at your age to grow while I lifted heavy 4-5x per week. I’m 37 now and still taking weight gainer to get the extra cals in my bulk stage

It is really hard for me to eat as much as possible because... I simply do not "enjoy" eating.

As you probably know, you're going to have to push yourself out of your comfort zone in order to make changes in your life.

It's generally easier to consume calories as liquids. Get a good blender and either get some good mass gainer or make your own. Peanut butter is an often-used staple for gain weight. Some people like GOMAD if you can tolerate that much milk.

Also start lifting right away. Lifting will activate protein synthesis and your body will start to prioritize building muscle.

Just start lifting and EATING. im 23 90kg ectomorphic (tiny like you by default (no offence)). BUT YOU CAN CHANGE IT! We ectomorphics get SHREDDED BODY VERY EASILY!

So the sooner u start the better

U will look better than guys who are fat by default and cant keep shredded (No offence bros)

If you want guide. Then force yourself to eat more. Google "mass diet for 70kg" and stick to it. replace fancy rare products with common ones like buckweat, pasta, rice for carbs and meat/milk/eggs for protein. most ready diets scary beginners off because they contain a lot of fancy and expensive products and meals. so you just replace it.

As for training, train up to 40min 3-4 times per week. YOU CAN TRAIN AT HOME! google youtube videos for back, chest, legs, etc.

I train at home and gained 15kg this way.

"I think I should gain some weight before I start lifting" What the fuck is this shit??

Google stronglifts 5x5. Follow it religiously!

Join a gym with several squat racks and book a jacked personal trainer for two sessions to drill you in all the main compound lifts. I wasted years training arms and chest only in a shit gym.

Eat as much as you possibly can as often as possible. Make sure you get around 150grams of protein a day. This means eating a lot of meat, 2-3 scoops of whey protein and lots of full fat milk. Don't worry about what type of food you eat just go for quantity and lots of protein.

I was 130lbs at 5'10 age 25. Once I got my diet and training on point I peaked around 175. Here's what I eat in a typical day:

2 x toast with peanut butter 3 scoops whey protein 1 pint milk 2 x chicken breast 400g Pasta with feta cheese 500 grams Ribeye Steak 200 grams fries 50 grams broccoli

Your appetite will get bigger the more you eat so you can gradually ramp up the calories. If you like full fat milk then it's fucking easy. Just drink 2-3 litres of it a day.

Try to eat or have a shake/milk 4-6 times a day.

If you don't lift you will either stay skinny or become a lardass. Lifting heavy and regular will dramatically increase your appetite.