Ambra, I'm going to talk straight here, from my heart. First, I'm going to say that I'm not a big fan of people calling or emailing their Ts, especially on the weekend, just because they don't want to wait until next session. That's my own thing and you can ignore it because it doesn't apply to you.
IMO, your situation is a crisis. I'm generally calm and the peacemaker and the person who gets upset the least over other people's bad conduct. I can honestly tell you that if I were in your situation I'd be feeling frantic.
Your mom rifled through your belongings and read your most private diaries and journals. Now the cat is out of the bag about CSA and ED and when that first happens it's scary, for anyone. It's scary because you don't know if you're safe and don't know what your mom will do next, who she'll tell or what's going to happen. In the long run, it may actually be a good thing, but right now you have to get through tonight and the weekend. That's what counts.
You will live through this, but right now what happened is not just business as usual, it's a real crisis and if you're still feeling upset and thinking about sui and other harmful thoughts, it would be good to reach out. I'm so sorry this happened to you. I will keep you in my thoughts and prayers and I know you'll come through this all right in the end. I hope you don't mind, but I'm shouting at your mom in my mind. I wish you the best.