Life out of control?

I've been having major problems with my everyday life for a while now. I can't force myself to study for university, I've gained weight, I can't manage my housework anymore, my room always looks awful, I spend a lot of time scrolling through the internet. I also spend a lot of time writing to friends who are my internet friends on other continents. Chatting with them is really the only thing that makes me feel better, but I think I spend too much time on it. I've started exercising and it's actually been going well in that I've had a reason to get out of the house. But I feel like I can't do much more during the day, partly because I sleep a lot. I have no energy. But it wasn't always like this. I wasn't lazy before. On top of that, I'm having problems with my relationship that have been going on for a while and I spend a lot of time thinking about it.

I don't want anyone to know how bad I've become, and I'm trying to hide it. I think how I feel depends too much on others. Like my boyfriend and friends. I think I'm doing everything I can right now to avoid feeling alone.

Do you have any tips on what I can do about it?