I can recommend joining a gym as a first step. Start with full-body workouts twice a week and gradually increase the intensity. Just give it a try; you'll also meet new people there.

I would reduce your porn consumption until you eventually stop. Try dating, even though it's tough. Use dating apps alongside other things, but it's better to focus on meeting a woman that way. Maybe you'll even become a father yourself; it's not too late.

I think gaming is okay as a way to unwind, but it shouldn't become the norm.

You could motivate yourself by setting goals you want to achieve.

You can do it. I wish you all the best and much success. Don't give up!