Winning longterm is like a Marathon and requires a lot of experience, realistic goals and more than anything discipline. Losing is very easy. Most of the time it's the 'get rich fast ' mindset that whipes out your account in no time. This is fired up by all the faked accounts, scam Brokers and vendors, selling false promises as a buisness model. By the way thes vendors often work together with scam Brokers, so don't trust 'real accounts' blindely.
Of course forex has the capacity to make you very rich. A lot of traders having seen for themselves the lucrativeness of the forex have abandoned their well paying jobs to focus on this financial market. If you learn your demo well perfecting your trading strategy with commendable money and risk management; you could go make a good income from trading the forex market.
Why...? Because there is no such thing as successful retail trader... It is an oxymoron...
It is possible.... How many traders have you seen in the past doubling (100%) his account? => A lot. Making 100% with very low depsoit it is easy. even in 1 trade it is possible.
I'm sure every trader can acheive this... but then they get greedy too quickly... we know the story, they were up 300% and they went down to 0 in 1 trade. So account blew up before they had the chance to withdraw initial capital.... so it's a loss.
Why don't we clown (repeat the first success 10 times) => Then if the first account blows up... does it matter? not really, you still have 9 accounts ready to be traded. => Notice that even if you destroy 10 accounts... well you haven't lost any capital.
Of course not... Why...? FMonera himself has summarized it well: 'It is very easy to optimize a strategy with all the available data and make impressive equity curves. The result is always that in real trading these strategies lose a lot of money. The reason is called “curve-fitting”.'