I'll say this here Mel, Shylily was definitely right that a lot of popular vtubers are also attractive, but it was her point about that attractiveness making them naturally confident and personable throughout their life that works for them (unless being attractive is literally all they've got going for them, then vtubing takes away the only strength they have). As long as you have the second part, the physical attractiveness doesn't matter in a field where your appearance is a non-factor.
You kneecap yourself a lot by saying no one cares about when you're still more than a 1view, and that you're ugly when at worst you're a high 6 that probably got bullied by 7's and 8's that saw an easy target. Get over your own misery for five seconds and realize that there are people out there watching you on a regular basis that just want to see you having a good time with what you're doing.