You mention wanting to be a counselor? You will need to have some teaching experience and take about 6 more classes to become a school counselor. You could work on these courses over the rest of this year and next to reach that goal. However, if you really are sure you want out, I would definitely finish off the year. You will NOT get a good reference otherwise. It leaves everyone hanging. Instead of quitting, get some seriously organized classroom management plan together and follow it. Check out the power teaching thread, too.