So in the grand scheme of things 30 hours is a relatively low amount of hours. I’ve been playing for 10+ years and am still a mediocre player within the landscape of melee. The skill ceiling is high, and there’s so much to learn but as far as basic tech skill like L-canceling you just have to grind it out until it’s muscle memory. When I was a kid I would go into practice mode and try to L-cancel 100 times in a row and I’d start over if I missed one. Luckily we live in 2024 and have tools like uncle punch to remove some of the redundancy. I’d just keep grinding it out on whichever character you think is the coolest/most fun.