Hi Sarah
I feel that if you seriously dislike this new doctor then you should tell your parents you do not feel comfortable with them..... Perhaps you are upset because you had to change doctors and this is why you feel that you dislike them so much....maybe these new doctors need to have a chance to be able to help you but, if you do not like them and are unwilling to work with them then your appointments with them will be a waste of time and money.
Although it is sometime hard to leave old doctors, it is sometimes a good idea to really evaluate and see exactly how you were benefiting by being with the old doctors. If you were getting the help you needed then perhaps you need to let your parents understand that they can help you BUT, if they were not really making much progress with you then perhaps these new doctors are the answer.