I was interested to find this topic now, years later, and i just started last week with $100 usd and i barely made $514 usd in a week, friend told me it's not-normal to have such income in a week only. So far i made 200 trades in this week only, seeing how market flows i can say that it is possible to make 1000$ a day in profits , mostly on GOLD, its still a guess due to my low budget i have, but i think if you CAN have 1000$ per day, investing 1.0 in gold per trade, just then you could be able to make such money in the day, but also you can loose chunks of $ in those trades if you dont have a strong strategy!!
Why put yourself under so much pressure? My target is $100 a day, if the market is smooth maybe more. I use a trading EA to lock profits at $100, then let the profits run with a trailing stop loss.