Just because you're not good at doing something doesn't mean you can't do something, so remember that you CAN call, and that it is there as an option.
I whilst you may want to convince yourself no one likes you, or that you can't be helped, its not true. I've seen how many people like you on here, and that's only after a few days. You are a decent person and people see that.
Also, you can be helped. I know it feels like you can't, or you want to believe you can't, but there is a world of help and support out there for you, if you want to use it.