tired

Bad weekend felt alone, depressed and tired, I have crazy thought going thur my head, I have thinking of hurting myself but I don't think I would because of my kids. I'm trying to be positive but I everything is negative. Every time I go into something I think of the worse in people, and that whoever the person is they wont like me because I'm stupid, fat or ugly. I know I have to change the way I think try to be more positive and fun loving guy but I having a hard time changing. I liked this girl Tammy and she doesn’t like me I think I don't know why it bothers me some much but it has I think I need help.