It's hard to know who you can trust unless you trust them and allow them to make the decision of whether to uphold it or not. I have trusted a lot of people where I learned afterward that I shouldn't have but I have put my trust into a lot of people who do deserve it. But if I would have taken those past experiences and applied them to my current friends, I wouldn't have anyone to trust.

Once you go through some experiences of learning who is and isn't trustworthy, it becomes easier to read people. I hope you can figure some of these isolation issues out. Maybe opening up about this to someone is a way of judging their trust? Just little bits of info at a time. Don't go spilling your guts out to someone....just a little tidbit at a time. Plus....we are always here for you to talk to so open up here! You will find a lot of trustworthy people on this site! Good luck.