Well if it has been almost a year, I think you have a fair point for not going now. You say you would rather talk to your mom, so are you actually talking to her? Come clean and tell her what is going on and what went on.
For what it is worth, talking to a therapist isn't as bad as most people think. 1. Not only can they not violate privilege, they don't know you family and friends even if they should. 2. They will not have an emotional reaction to anything you say, so you can deal with your emotions and not have to worry about theirs. And honestly just sayng somethings out loud can be very cathardic.