Dear Michael,
I am so sorry you are feeling so scared and alone right now. That can be very overwhelming and it is hard to think clearly when you are feeling that way. Believe me, I know. Been there, done that. And survived! As you will, too. I have spent weeks in dark scary places in my mind. By working hard and holding on to hope, I actually laugh these days and find myself surrounded by a few people who love me for who I am, not who they want or expect me to be. You will, too.
Let me remind you that you learned to trust your current therapist, so it is not true that you cannot trust anyone else. If you trusted your therapist, you will learn to trust another. Learning to trust a new one will help a lot in becoming able to do that more and more, with yourself and others. Even though we on this site do not exist in the flesh for you, we are nonetheless real people who actually do care about you and what happens to you.
I understand what you are experiencing with your family. I went through something very similar myself and it has taken several years to deal with. After I was raped in '95, I started looking at life and my family as it and they really are and started asking questions. That didn't go over so well because I stepped out of my role and upset the status quo. Eventually I was rejected to varying degrees by everyone in my family. Previously, we had been what I thought was very close. I came to realize that that was an illusion I had bought into. However, at the time and for several years afterward I felt like my whole family had been killed in a plane crash, the feeling of loss and aloneness was that profound. In the last year or so, things have gotten slightly better with my family and I have managed to develop friendships with a few people who have become my new family. I still get scared and feel alone sometimes, but I also have learned that every relationship is temporary adn that loss is part of life. You sound like a reasonable and likeable person. There is no rational reason to think that you will never have anyone in your life who cares about you. Now is the time to start developing a support system for the first time in your life. It will take time and involves taking some risks, and it is well worth the effort. Abundance awaits.
You are in my thoughts.
Roy