Hello Elle473: Welcome to PsychCentral! PC is a great place to gain support as well as to obtain mental health related information. There are many knowledgeable & caring members here. The more you post, & reply to other members' posts, the more you'll gain from the time you spend here.
I think that nearly every person would like to know how to change what they have come to believe about themselves. And there are almost as many techniques for achieving this, as there are people who would like to do it. I think the main thing is just to investigate ways of going about this until you find one that seems to fit you. Then stick with it. Too often, I think, people tend to try a little bit of this & a little bit of that. So they never really commit to a specific path. I think that, by signing in here on PC, you have taken a good first step toward finding your favored path. I wish you all the best!