phycology book advice

recently i've discovered that my mental health might not be as good as i thought it was. I've told my friend that I have trust issues, and I feel jealousy towards friends, and that I kinda hate myself, and my mood can change in weird ways, and stuff like that. She told me that possibly it's not just a part of a normal human being, but signs of a depression and anxiety.

I always overthink stuff and imagine things, most often that a particular person hates me. I have a hard time interacting with people in normal ways. When I'm hanging out with a group of people, I can't have a great time like everybody else if I don't feel a deep emotional connection with all of them. When a good friend starts talking to anybody else except me I think they resent me. 

The point is I always thought I'm normal, but it turns out I might not be, and I want to get some information through books or whatever to help me decide and take action if needed. So please recommend me something please thank you.