I am thinking of going back to college. What should I study?

I like art but I don’t know if I am that talented. I just want to sell art and it seems easy money. I know it’s not a good motivation. I applied for graphic design but I didn’t get in. But I studied fashion design in prestigious school. I can sell my clothings but I forgot a lot. It’s been long time. I want some fresh start.

I am thinking of going back to college. What should I study?
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