Couple of questions:
Why do you want to break it?
Better opportunities?
This company not your ‘thing’ for whatever reason?
What’s so bad about sticking it out?
Some type ratings are really expensive so what kind of money are we talking about?
Don’t fall into the trap of ending up paying your lawyer the same amount.
Make sure you want to burn this bridge as most wont hesitate to call you a bad name when your next employer calls them.
You may just have to man up and sit it out.