As much as you can afford to lose.
Don’t give up your day job! There’s absolutely no need! @dpaterso s post is right on the money! No pun intended
If you quit your day job and try day trading with a small amount of money with minimal trading experience … Your stress is going to go through the roof which is one of the key ingredients to poor decision-making in trading.
Continue to learn all you can about forex in your spare time.
Keep your day job!
Do whatever it takes to become very, very, very patient and trade the daily time frame with .01 lot sizes. This type of trading fits neatly into a person’s schedule who works full-time. I have found the work continues to provide income and a distraction from overthinking my positions.
Trading the daily chart will go a long way to eliminate stress, keep you out from in front of your monitor which results in all sorts of second-guessing and upside down trading … going long when you should go short, short when he should go long.
Learn to be patient, trade small lot sizes on the daily charts and chances are you can take joy in watching numbers get larger and larger over time and not smaller and smaller very quickly.
All this should be taken with a large grain of salt as I have some trading experience in options but still demo in forex.