Social Anxiety vs. Confidence

I have social anxiety and I've noticed that I am very confident on the inside but as I've grown more anxious it's hard to express it

I used to be very outgoing when I was younger but I guess it developed as I got older

I have opinions and things I would like to say and do but sometimes I can't bring myself to do those things

And of course I notice that sometimes the things i can't do are dumb like just saying "hi" and I've been trying to fix that lately just trying little things that scare me

Idk just venting

I hope some of you can possibly relate and comment