I was, perhaps a bit harsh last night. It is, of course, possible to average $20/day even with your bankroll -- but it's not easy. Your BB/100 would have to be high. And variance is harsh. You would have to be very disciplined, very solid.
I would advise playing fixed limit ring games, play them tight (with an occasional foray into suited connectors and lesser hands), and grinding, grinding. No, you don't get to stack anyone at fixed limits, but you also do not get stacked yourself. Fixed is less swingy, more viable for sustained play. You can see flops relatively cheaply and get out if you don't connect. You can check-call, if you want, on your draws, limiting your exposure, your losses if the draw doesn't get there. These are different games than NL, so you will need to adjust if you play them. Expect people to stay in with draws. Your TPTK may not hold up, so play appropriately. Do not get greedy. Plan to build your BR a bit at a time, rather than in big wins. Fixed limit can get a bit boring played correctly, but, if you are playing poker as work, fun fun fun is not where it's at. Making money is the thing -- it's like a job at that point. You sit down and you work. Study up!
Razz and other less popular games can be good, too, as more people will sit down at tables without much of a clue. If you can get to be a solid player, you can do well. Razz, 2-7 Triple draw, badugi -- all reward tight play, just like any other form of poker. Stud HL is another good one, once you get the hang of it -- I like it better than Omaha H/L because there is less chance of your low getting matched. Lows are great in SHL -- they can turn into highs as well. There's at least one FT Academy lesson on it, and plenty of guidelines around.
Stay away from the wilder, looser games. Like NLHE and PLO. You cannot risk your bankroll on games that could bust you.
Play low buy-in tourneys --$1 and $2 -- and get your ITM percentage up around 20%. It can be a bit lower if you end up deep deep a lot. But, bottom line, you will bust out of many more tourneys than you make money in, unless you are crazy lucky.
9-person SNGs are more cost-effective than bigger tourneys, as you have a 1 in 3 chance of cashing. I see you like big SNGs and MTTs, but these are more risky investments. (If your ITM % is 20%, that's 1 in 5 -- compare to 1 in 3 for SNGs, assuming you do OK. It's a no-brainer which you should play if you want to get ahead steadily.) Going for big wins is all well and good, but it's dang hard to get them.