Extreme social anxiety - need help

I am in my late 20s and always had a lot of social anxiety. As a result I lied a lot to fit in. I lied that I went to a public school instead of a private school, I never said my brother did a phd, or that my parents are business owners. All of this because I am afraid of being judged as wealthy. Also I never said a lot of other things about my self.

I always feel really uncomfortable sharing any details about myself for people possibly judging me as wealthy.

Now I am scared if i start telling the truth people will be mad at me for having not shared these things with them before.

Anyone have any advice?