Hey guys, me [20m] and my ex [20f] broke up a week ago and since then I've been realizing how lonely I am without her. I gave up all of my friends and depended on her so much for happiness, I've been trying to work on myself but i have no confidence anymore without her. I relied on her to feel good, any time I had an issue I turned to her. Now I find myself craving interaction, I feel like absolute shit if I'm alone and all I ever want to do is go out and meet people but every time I do i shy away or compare them to my ex. What can I do to start healing?

Tl;dr: depended too much on my ex, now I'm lost