At least you have these thoughts now, and can recognize that you only have a few people you can trust. After years of thinking I could trust people, I realized that many of them weren't trustworthy to begin with. I thought I had many friends, but it turned out that a true friend is more than just a person you talk to. So in that respect maybe you are ahead of things. I have found a few people over the years that I could relate to and so for some periods in my life I have had the blessing of a true friend, a good husband, (or two).
Here's a good Jackson Browne song that might give you some comfort:
had to edit this out, sorry. it's called only child.,