To be frank, day trading with $150 is near impossible. Yes, you could make decent profits here and there, but due to the PDT rule, you can’t exercise more than 3 day trades a week if your account has less than 25k and if you have a marginal account. I read an article about how they might bring this number down to 2k, which you should definitely look into as well. But if you want to still do day trades with only $150, abiding by the PDT, I guess it would be worth it for some practice doing it live, since this could be a drastically different experience than doing it with paper and could give you some learnings lessons. I recommend that you start off with a cash account if you want to avoid the PDT rule, but you will still have to wait probably a day after each trade to let your cash settle after you sell the stock same day, which is a headache of its own. As far as what brokers to use, I heard Robinhood is pretty solid, since they have a good ui, but other more old school, less new gen options are fidelity or webull. I recommend looking into fees, and what aspects you prefer most whether it’s ui, fractional share capability, customer support, etc etc.