>I want to look like Tyler Durden
Why do DYELs think Tyler Durden is the pinnacle of fitness?
OP you should literally just eat healthy food and lift heavy weights. That's it. Don't obsess about it whatever you do, because that's the surefire way to spin your wheels.
Look up 'PPL routine reddit', google all the exercises individually and look up proper form and stuff, then when you can go to a gym do so and do that routine. In the meantime, and forever really, just fix your diet. A cheat way is to just buy and consume things that are 100% what they should be. Oats, chicken, broccoli, bananas, etc should all just have 1 ingredient. You can add things together yourself, sure, but if the thing you consume has things you can't pronounce, or stupid shit (like sugar in chicken), then stay the fuck away from it.
Finally, expect results IN TIME. Brad Pitt was in his late thirties in Fight Club with a few decades of exercise and proper nutrition behind him. He was also likely on some kind of muscle-retaining, fat-loss drug like DNP or Trenbolone or Clenbuterol. He was also dehydrated in that one shot, had perfect lighting, and was edited to look the way he does in that one scene.
By no means is it impossible to look like 'Brad Pitt in Fight Club :-D' but be aware his physique is not impressive. His leanness is, he has very low bodyfat in that movie, but overall it is not a great physique, and would be difficult to maintain considering how little you'd need to eat. More muscles = better quality of life. You get to eat more, worry less, and look better even with a higher bodyfat %.
TL;DR: Just lift heavy weights and eat proper food. Do other things in the meantime because it will take you a while, the sooner you start and stay with it the better.