I'm not sure I understand where you're at in the contract--have you completed the orientation? I feel for you because I was in a similar situation not too long ago. I signed a contract to work in the OR, orientation was 1 year with a promise to work for 2 years following orientation. Midway thru orientation I knew in my heart that the OR was not for me, and I finally resigned with a heavy heart. The hospital never held me to the contract--not sure if it was because I didn't complete the orientation, or because they changed the terms of the contract (pay cut for all employees), whatever, I wasn't complaining. I would have agreed to a pro rated amount to get me out of the contract, but they never pursued it.
Honestly, it was the best decision for my career. I am very happy now, found my niche, and will never look back. Warning: I asked what to do on this Board back then, and got beat up pretty bad for contemplating breaking the contract. But I had to follow my heart. Good luck to you :heartbeat