Compromise. Do Karate and something else and maybe down the road you will have to decide between the two and it won't matter so much which one you will choose. But right now you are playing tug-of-war with your Dad and I guarantee you, you will not win. Pick something you have a better chance at winning, like compromises.

Kick boxa.

Believe me, you can't convince a parent who is 100% convinced they know what's best for you.

Try to speak with your mother, that you dont like Karate. Maybe she can help to speak with your father. If that doesnt work, you just need to speak with your father by yourself. Example: What if i forced you to do this etc. Speak this everyday long enough, maybe he understands.

What's scared him recently? Or does he run the dojo?

If he doesn't own the gym you can probably compromise with him. Spend half your days at karate, the other half at swimming. It will require some planning, dedication and unselfishness on your part - can you do that?

My dad is being an *** and forcing me to go to Karate classes everyday including Saturday and Sunday, i hate it, i try to explain to him that i need to do a sport that i love and want to do, but he keeps on saying are you done yet? Or its not your decision, please guys, i hate karate, i wanna do swimming but he wont give me his okay, i swear man if he dosent let me leave karate and go to swimming or basketball or soccer i dont give a shiet im going to take all my **** and run away. Im tired of his shiet.