Newly single at almost 30

My girlfriend woke up last Sunday and told me she didn’t love me anymore as a girlfriend, didn’t want to be with me and it absolutely was not fixable.

I’m very lost. We’ve been together for 5 years. We share a house together that’s in both of our names. Now we’re still living together until we can financially afford to get separate places but I’m lost. I have no friends of my own, I’m hurt, I don’t know where to go from here. She goes out to bars with her friends every weekend and I’m home because I don’t have friends or hobbies or anything. I don’t know how to exist alone. Help.

Tl;dr newly single, don’t know what to do with myself. Devastated