I've been working as a valet for the past three years while attending HVAC school. Recently, my boss has been on a power trip, cutting everyone's hours and sending out an email regarding time off requests. I had always taken time off without issues, but after requesting time off for September, I received a somewhat aggressive response. Currently, I only work 1-2 days a week, and he often asks me to come in on days I have classes, which I've done out of goodwill. However, I’m now actively job hunting for a better position in the HVAC field since I recently obtained my EPA certification. I'm really frustrated with the situation and looking for advice on how to handle my boss and this job while I search for something better.