My dad wont let me do anything...advice?

ok so im going to be a senior in HS and so far throughout my HS career...I have snow skiied (since i was 7, every friday saturday, sunday during the winter), and thats it for sports. I did a couple HS clubs such as DECA and a mentoring club to younger children. I have mainly focused on my grades, my gpa now is a 3.1. My parents divorced...split all the money up...my dad recently started a REALLY successful restaurant and now he is saying that "he doesnt have the money to ski this year, and that i need to focus on my grades". ok so....now I do ABSOLUTELY NOTHING...he wont let me hang out with friends anymore...go skiing with friends...i have to sit at home ALL day and study....so what do I do? I want to go hang out with friends...ski 3 days a week...and NOW I CANT! I even offered to pay for ski stuff with my $$ from my job...and I cannot because he put a block on my debit card! what do I do?? I will die of boredom!! WHAT DO I DO??? I KNOW HE HAS THE MONEY...HE MAKES $3,000 PER DAY AT HIS RESTAURANT!! And I want to ski, and go to friends houses...and have fun....before I go to college and study my A$$ off! HELP PLEASE I AM GOING CRAZY!!!