What should I do?

15 16 in march I’ve been depressed cutting suicidal I cut on the 11th thinking of doing it again mean family my dad hit me with a belt because I drank some of his wine because I was depressed I am lonely for the most part 2/3 good friends but not always there. I was planning on killing myself in october on a cruise I don t know how to swim 6 months away. I stopped taking my depression meds they don t work and made me gain 40IB my dad still wants me to take it I have counseling twice a month I was at a mental hospital for 6 months helped a tiny bit I have bad grades. Depressed everyday I talked to the safety coordinator at my school told her EVERYTHING She was going to send me to another place (another mental hospital) I wanted to go but she offered my dad to pick me up instead everything has been way downhill ever since I want to run away can t nowhere to go what should I do