What to do with my life?

So I have not clue with what to do with my life? I just finished my associates in general arts, I work as a clerk at a convenience store. I don't want to go back to college cause my grades took a huge hit since high school. So its not worth spending more money. My dad is starting to ask what i want to do it life, I just turned 21. I have no clue, i cant be a clerk forever. I'm not being a loser living in the basement at 40. Am I destined for failure forever?