Ask HN: How to manage a lot of interests and focus

Hey Everyone, I had this problem for a long time. I really love coding, design, art, drawing, game dev, voxels, 3d and lot of other things. The problem is that I don't know which of these to focus on.

Take Coding, I really love coding. But the problem is say I'm learning Haskell, halfway through I would give up and learn go, maybe then drop go and check out Machine Learning.

I would enroll in courses, bookmark websites and then literally do no follow up work on it. I am turning into a Jack of all and master of none thing. I do really want to get better at the above said things.

The question is how do I manage my interests so that I can focus on one thing and become better at it.

Any tips, tricks or anything would be really helpful, and I'm pretty nervous about asking this on HN.