I’ve played video games my whole life, I’m generally believed to have add lol

I’ve dabbled in fighting games, I really wanna buckle down and get good at them, I’m not awful at video games but not the absolute best

Am I gonna suck my whole life? Is it possible that I just don’t have what it takes in my brain to understand everything?

Or am I just beating myself up and not willing to practice enough?

I’d love encouragement or feedback.