I do several hundred a day in profit off of affiliate on FB and $800 - $1,500 a day daytrading stocks.
If you're in the US and can fund your brokerage account at least 25k then you won't be limited to day trading rules and can trade freely. If you're new then pick up blue chip stocks only = less volatility.
As for affiliate, I split test with the 5, 5, 5 rule on FB until I narrow down a funnel and let it run. Why can't you do the same?