I am a freshman in college, 18. I am well off on money but I want to make some more on my own. My last job was last year and while I still have a lot of money from it, I want to pursue something else now. I have a couple small hobbies but I want to start looking at some more. What are some other hobbies I could do? Not looking at an instrument. I used to be into aquariums and I'm considering taking that up. Maybe do drop shipping? I want something professional that I can talk about in a job app or professionally.

In short, there are times where I have a TON of extra time to devote to any topic, and there's times where I'm super busy and don't have any time to devote to stuff. I'm looking for something that can fill that hole.