Good luck with this challenge. However, I have to say that achieving it will be very, very, difficult. The problem is that many newbies reading this thread do not realize that you only need to blow up once to get your account wiped out! Starting with $300, I would have thought $3,000 is more realistic and even that is very difficult. I would say a really good trader could possibly make $1,500 in six weeks at best. Adhering to good discipline is not a cure either because 'excessively' tight S/Ls mean missing out on many profitable trades, and gradually reducing your initial $300 to double digits!
Again, good luck but I would have preferred a more realistic goal.