I Have Trust Issues

And it terrifies that that I may never get over them. That if by some small miracle, someone does want to be me that everything I have been through and dealt with will ruin it. That I will mess it up and always be scared that the guy will be cheating, using me, or will hurt me. I don't want to always have these thoughts at the back of my head, these fears, but there isn't anyway for me to truly get over them. I want to, I want to move on and grow from all these bad things that have brought me down for so long. But how?