I know it's not good to keep feelings bottled up inside, but I can't seem to be able to open up. After more than 4 years, I just opened up to my old co-worker yesterday. I don't know what to do? I can't seem to fix this, and I'm going nuts here. What do I do?

I tried talking to my parents. they won't listen. I don't feel comfortable telling my friends or even my boyfriend. I just told my old co-worker. It was really hard at first, but then I told her more.