I do not think that there is a set number of years as it is more about the regularity and consistency of trading. I am just a beginner, and so I cannot really answer, but from fellow friends who have been in the forex market for some years it seems that they needed at least a couple of years to really get things going. Obviously the more time you devote eveyr day the better, as you need to consider the charts and what they seem to be showing, as well as go through any news about the markets. I think you need to be patient and careful to do well, and very persistent too. Learning requires all this as well as learning from experiences.

If you want to become a professional forex trader then you need need to study forex for at least 2 to 3 years. Must also be to gain experience about different types of market analysis. You also learn a lot about different trading techniques, daily charts, time frames and should monitor the market daily. Also, you must continue the demo trade and with the help of this practice, you can gain experience which will help you to become a successful and professional trader.