Docker is annoying as fuck. Don't blame yourself for not getting it to work.
Bottles is also annoying as fuck.
These two things aren't really a sign of your skill. The first one (docker) is unfortunately super prevalent these days because of memes and bandwagoning. It has its use, but it's also used in many places where it's not needed without providing a comparable means to run software without docker. It sucks how newbies who are just trying to get a program to work all of a sudden have to learn a bunch of docker bullshit. Just another layer of crap to make things harder to learn while the creators jerk themselves off.
Running Windows games on Linux will always be a pain in the ass because you're trying to run complicated, sometimes very old, software that straight up was not designed to be run on Linux! I've been doing it for years and it's still a pain in the ass. Some games only work with Lutris, some require very specific settings. It's all a mess and I don't ever expect a Windows game to work unless I've gotten it to work recently and played it a bunch.
It's not your fault. It's not Linux's fault. This is the price that we all collectively get to pay for not doing things right the first time.
In short, don't lose hope. You're doing fine.
Have you tried using emulators? They're a great start and can show you how to easily get some usage out of your computer.
If you have a controller, I recommend giving it a shot. There are plenty of emulators out there. Just pick a console you like and you can get games for free at vimm.net