Hey!
I understand how you feel!
I graduated early from my undergrad school too and felt very lonely (seeing as how none of my other friends even stayed in school to begin with!). I'm 22 also, but I took 6 months off between undergrad and grad.
I have to say that it was the best thing for me... I mean it was awful and scary and miserable at first, but then I really came to like just working (of course, that is with the anticipation of going back to school. Before I got my acceptance letter, I was in full on "quarter life crisis" mode).
I'm a visual artist, a comedian and an avid reader. I didn't have time for any of that stuff while trying to get my degree (oddly enough, in fine arts!). Since I graduated in December 08, I've done several paintings, hundreds of drawings, participated in sketch comedy shows and read more books than I can count. It's been awesome (after I learned how to walk again... I'm telling you it can be very scary at first).
After reading about how you feel, I know for certain that I would have felt the same way if I did what you did (go right back to school and change your whole life to accommodate it). I think you should follow your heart... which I assume is saying "take some time off!"? Look into what it entails for you and what it means regarding your degree... but above all: put your happiness first (in a responsible way of course)!!!
Best of luck!