Smash is a fun game but it's absolutely not worth getting into competitively
1) The community is bar none the worst gaming community out there. From them protecting sex pests, Leffen and making excuses for every kind of predator whilst punishing the victims in basically every situation, it's not only an extremely toxic environment, it's also genuinely unsafe. It's no wonder that it's the only competitive environment where there is maybe, at absolute best, one woman for every 200-300 men. Like these environments always have a surplus of men, but absolutely not to this degree. It makes sense however when you look at the community and their treatment of women, children and vulnerable people of any kind
2) It's not worth getting carpal tunnel and completely unfixable tendon issues for tournaments where you can get maybe a half eaten burger and some napkins for being the best player out of thousands of attendants for. Art, office work, most competitive games are detrimental for the wrists, but getting sick Fox combos is basically just a wrist destruction speedrun
Getting some friends together, playing some Slippy and taking it easy is fun. Getting competitive is awful. If you really need the fix, play Rivals of Aether competitive, the community is significantly less toxic and the game is much less taxing on the wrists. Or just go with any other fighting game, most of them have questionable communities too but not to the degree of Smash