Good approach on harvesting sats, no better money than free money :-P. On the investing part, from personal experience I can tell you that many people that think they can't do it actually can, there's a lot of false mystique around investing. Unless you wanna live off your investments right after starting, you can begin small (both money and time-wise) and work your way up. I have no formal investing education and I can tell you my investing activities have been rewarding so far. What's important about it is to be responsible (it's different from gambling), research your investment targets and keep a cool head at any time.