This is some advice from a bit of a sideways perspective, but maybe it will be helpful to you.
Since most community college degrees are two-year programs, almost everybody is new all the time. They're either fresh in the door or just finally getting the hang of it before they transfer. So everybody there is always a little nervous because most of them are going to a new school and feel out of place and aren't sure what everybody thinks of them.
So, in this respect, it doesn't matter whether you're 18 or 31 or 65, everybody is equally trying out a new place without any of their old friends to make them feel normal.
This kind of environment is extremely hospitable to asking questions, learning by doing, and connecting with people. Nobody is a hot-shot. There is no student hierarchy. Professors are always on the lookout for people who need help and you shouldn't ever be afraid to ask for it.
When I was in school, older students were really self-conscious about being older students. They were used to already knowing things, already having answers, and didn't want to look dumb in front of everyone else for asking questions. When they ran late for class, they wouldn't want to show up. When they didn't understand the material, they just kept their head down. New-student jitters are multiplied when you're also afraid everybody thinks you're a loser for being twice their age.
But they don't. So if you start feeling that way, you shouldn't. There is no "normal" college student and fresh-faced eighteen year olds are just as insecure as people returning to school for a second career.
Lots of older students would stop coming to class, or switch classes arbitrarily, or never talk the whole time because they put up walls to maintain an "adult" image when they felt uncomfortable. I don't know if this will happen to you, and if it doesn't, none of this is helpful to you. But I know there were lots of people at my community college who could have used somebody telling them all students are the same and they're no different from anybody else. So that's my tip.
But now that I think about it, if your classes are all online, nobody is going to know anything about you. So... I guess this isn't helpful advice right now.