Tried asking on /adv/ repeatedly but that board is genuine dogshit

I've been told front end web development is good, but I want to know what are some other viable things. Something you can learn and make money off of in under 2 years. A guy I know who has a "technical analyst" business has told me that dropshipping is good, but I heard lots of bad things about it from fellow redditors.

I work manual labour and I have 4 whole days of free time per week where I can focus entirely on learning something. I want something that can enable me to choose my own hours and not tie me down to a location in the future. That's my only wish. I don't care about big amounts of money, just enough to make a decent living