Owning my past mistakes

At some point last year, I went along with things that I didn't believe/wasn't interested in just to be accepted. The same people whose acceptance I craved still rejected me. I have been deconstructing and getting rid of all the fakeness, but still lie to myself occasionally that I'm into some things that I'm not, just to "save face". Deep down, I know I'm only holding on to those things so that I won't look stupid- I feel ashamed that I have to eat my words. I'm worrying too much about the ridicule that follows with changing my opinions back to who I truly am.

I know I'm being pretty vague but it's for a reason.

Anyway, have you ever faced/done this before? How do you own up and get past that shame?