I am flummoxed...

Confuddled, maybe even dumbfounded... I'm a pretty decent player. I have some characters in elite(Bowser, sora, cloud) but when I (try) to play Yoshi I suck so bad... Even my offline friends, who suck at this game, beat me more often than not. Wtf is going on. Is Yoshi somehow very different from "the rest"? Have I not figured out something about him? He is pretty much the highest tier, right? I usually play swordies and even tho I have my favorites I can make most of them dance for me but Yoshi, I just can't man... Halp!!! Plz 🙏🏽