Welcome to beyond blue.
Did you recently finish high school? My dad never said I was a failure, but I felt like one for a number of reasons. Both he and I are also perfectionists, so that I does not help. Anyway, I never got into Uni when I "wanted" and everyone else did so I went to TAFE instead and the course I did there got me into Uni and left with a Masters degree.
Now you might not want to get a degree... that is fine also. I lived in a share house with other students. There was one student one semester from finishing his engineering degree and was talking about how to tell his dad that he did not want to do it anymore. My brother took a year off from study after high school and 2 weeks into engineering rang mum and dad to tell them he hated it, and changed to Arts/Law. Someone else did a veterinary degree, completed it, but works as an electrician.
You seems you are passionate about becoming a chef?
Now suppose you got into Uni, you would be living away from home? Would you do the degree part time of full time? Regardless would you do any part time work? Would you find work in your desired area?
As an aside, there are food related Uni courses. But whether that is something you want to consider?
While your dad might not sound caring, it also sounds like he does not want to you make the same "mistakes" (whatever they were, based on your last post) as he did. Conversations with parents can be difficult. But can also lift a weight off your shoulder if you are able. Even today, some conversations with my wife I have to prefix by saying "please let me say, get it all out, before you respond....".
My personal thought is that you don't get into a position whereby 30+ years later, you don't get to my age and issues from your teen years still have an effect on how you perceive yourself.
Peace and comforting thoughts,