Hi @Princessmolly,
I think social media can be a problem if you let it be. As for myself, I try and limit the time I spend on Facebook. I enjoy it when I'm on there and then I can let it go for a week and come back to it when I have nothing else to do.
Maybe the real problem you have is that you compare yourself to other people too much? I don't mean to assume that you do, so please correct me if I am wrong. it's something we all do, at times.
It's difficult to "read between the lines" and many people on Facebook only ever post about the good things that happen in their lives.... so you never hear about the bad stuff.... then you might jump to the conclusion that nothing bad ever happens to these people! Bad stuff happens to everyone. Unfortunately.
If you want to break the Facebook 'addiction' then maybe send some personal messages to your friends telling them to contact you by text message on your phone, if they are having a catch-up. If a few weeks go by and you don't hear from them, then send them a text and ask them to meet up with you. Take the initiative yourself. Even call them and speak to them in person one evening! They will love that you made the effort to call.
I find with friends in general, it makes me feel good to take the initiative and make the move to contact them, rather than waiting around for them to contact you. It ultimately makes me feel more confident. It will probably have the knock on effect of making you appear happy and motivated and social, too.
Not that I am any expert, as I have been reclusive lately. I moved house and didn't even tell people about it! I am in the process of calling everyone now.