Agreed. Make your own stuff and try things. Get a Youtube channel and just put stuff out there and explore your acting. At the start you don’t have to be Daniel Day Lewis, so be imperfect. Fail a lot. Make super dumb videos, and then turn around and try to make a poignant video. Get used to seeing yourself on a screen and get comfortable. Before you know it, you will have a body of work that shows your growth, and along the way you’ll find people who like what you do.
And local classes and performing troupes are also pretty great if you can find them. If you’re in a big enough city, there will probably be a few so you can find what’s right for you.
I have a friend who does voice-over acting and she and a few others started a semi-weekly stream where they play Final Fantasy and other RPGs and voice the characters. It’s them goofing off and exercising their acting muscles.
Hope this helps!