I'm having a similar experience, and seemed to have grown farther away from my family. There are SO many times I feel useless, like I shouldn't exist. And in the last few months, my days seem to go from really good, to incredibly bad, with the changes coming in somewhere in the middle of the days. My fuse has been short and I don't feel like holidays/birthdays are worth celebrating.

I don't have a real answer to feeling useless, but...what keeps me going is partially faith that I have something I need to do on this earth, I just don't know about it, and that there's people that would listen if I ever have problems.

For family, you can't choose them, but if you're ever in trouble, your family will always be there...like it or not. *laughs*