I have no idea what to do about this!?

You are not only in a funk, you are depressed and it takes awhile to get back on track. I would hope that there is a hotline in your area for people who just need to talk things out with someone. Sometimes that helps, or if you have another close friend that you can talk to it will help. You have to be able to realize that you aren't doing what you need to do when you are putting that junk food in your mouth or whatever it is and decide right then that you need to change your ways. So sorry this has happened to you. Git up, go out and find some new friends (not boyfriends yet) and make yourself have some fun.