I can’t even begin to understand how it can be that bad working for your FAMILY. Instead of complaining about how much it sucks, think about the long-term of it. It is a family business you are in, you will some day be an OWNER. Learn the business, put up with the “shit” you think your father is putting you through and grow the fuck up.
You honestly think working some bull shit part-time job is going to get you somewhere?
It must be nice being a spoiled little fuck.