Idk if this is the right sub to ask this but what are some steps you are taking so you can stop working as soon as possible?

I'm 20 and would like to see some interesting ideas. I've been slowly but surely investing small sums from my part time job while in uni since I was 19 (giving money to a third party to invest it for me since I'm no stock guru) but that's really the only way I can think of for now…. Just invest into different assets until the profits on those make more than my salary. So what is something that you are doing that a 20 year old might not think of?