Thanks for the responses, guys. Good stuff to keep in mind.

One of the other things I'm nervous about it maintaining the momentum of these emotions FOR my time in therapy. If I sit on the couch having already hashed out my feelings in a journal (which I do keep, btw), then they wont carry the same momentum when I'm sharing with my T. And if they don't carry the same momentum, there's a chance that I won't fully heal from them because my T won't be able to respond to the WHOLE problem.

And like I said, I know that this HAS to happen during the sessions because I desperately need my T to be there so I don't cut or even fool myself into thinking it's okay to keep some things buried for good. I'm just really nervous about this whole prospect...