Could you get a job on a Peds med/surg floor? You already have some experience with that population, which can help.
It's really hard to be new. You have all the job duties to learn that are totally new, plus the staff and the docs, etc. It sucks big time!
I would tend to say you haven't given it quite enough time yet, b/c you haven't had time to get into a "groove" yet...but...sometimes a place/specialty just isn't a fit. You'll be the best judge of that.
Something to think about would be what clinicals did you like the best in school, and where do you see yourself going in your nursing career? If med/surg doesn't fit into either of those categories, I personally wouldn't waste too much of my time there.
Good luck and take care of yourself as much as you can!