Anxiety is getting bad

So I’ve always been an anxious person. When I was younger I never wanted to order my own food, I hated talking to anyone on the phone even family, I was just nervous about anything pretty much. But for some reason it’s gotten so bad like I’m afraid to go anywhere and talk to anyone. I feel like I’ll say something dumb or awkward or embarrass myself. How can I overcome this?? I take online college classes because I’m so scared of interacting with anyone but one of my classes this spring is making me go in a classroom and I’m extremely nervous about it. I don’t have the money for therapy but I’ve really considered it. What are some other options until I can save up??