How do I break free of my shameful past? How to be respected in future? Please help me.?

I was in porn for a few years and I have had people call me out on it, not often but it happens. Too many ppl know about it and it is hard to get any respect because of what I did. I should have thought about this before hand but being young and dumb I did it for the money. There is nothing I can do to change my past, and I am having a hard time keeping a man or decent friends because people always judge me. Im worried about my career, I don't know what to take now in school because many bosses will not hire you or will fire you once this surfaces.. it has happened before. How do I move on? Can I? I feel like dying :(