I just wanted to give you a quick response and say I'm sorry to read that you're struggling with this as I believe that this has been quite challenging for you and I think that the cause may (or may not) be deeply rooted if you're having significant trust issues with others.
Thank you for sharing this with us.
My wish for you is that people experiencing this type of anxiety can come forward and offer you some suggestions that they have personally used to slowly help them overcome this.
There is always hope and change can be just around the corner. You matter to us so please let us know how you go