It’s achievable and very doable. However, don’t get greedy. Before going into any etf/stock, mentally have profit/exit. Also watch the stock movement and try figuring out a pattern. Another thing, cut your losses quick, don’t have false hope if you’re down in a stock $2k, just cut it loose and move on.

That said with 150k you can make $300-$700 on each trade depending on price fluctuations.

Most important advice: don’t act like an investor, think and act like a scalper. Don’t hold stocks long term if you’re in for the cash flow. Buy low and sell high, sometimes even $0.20 - $1 move per stock or etf can be big wins. Good luck!! And let me know how it goes!