I get what you're saying OP, life of a muslim can be so unnecessarily restrictive at times. Just do whatever you want, you can always just label yourself a liberal muslim and go from there
As for you're question. No one abandons everything they were taught from birth all at once, small steps here and there. I stopped praying, I'd eat chicken regardless of whether it was non halal or halal, y'know baby steps.
I didn't leave islam all at once. It was mainly a cumulation of many years of doubts and scepticism until one day i realised I didn't believe. Questioning everything I was taught to do also helped speed up the process, for example; i stopped praying cuz no one is gonna answer my prayers. It's basically like talking to urself
It gets easier after a while lol i remember in the past I never used to listen to music, because of haram, and now I can't leave my house without my ipod
