These hours probably wouldn’t be considered clinical experience anyway. Usually the people involved are subjects and not patients. But even so, don’t let one negative person change your mind. Rethink why you decided to do this particular job . What are your other options at this point? Do you have anything lined up? Remember, it’s only for a year, it’s a different experience than you’ve had, you are interested in the subject and you’ll be interviewing so you’ll need the freedom to do that too. If you really can’t see yourself sticking it out, give your two weeks and tell negative Nellie she’s the reason you are leaving.