I am sorry you have been feeling so bad lately. You say you informed her that you are not sure you can commit. You need to be able to commit in order for you to make true progress. How do you think your therapist should have reacted?

This reminds me of the quote by Henry Ford. "Whether you think you can, or you think you can't, you're right." You have to believe you are strong enough for therapy or it won't work.