It is no need to wait for the first two years for traders who will give up with trading, but they will stop trading in the first month if they cannot make any profit. Trading will be difficult for people who don't want to learn some basics of trading, but they will have a chance to get the profit for the first time they trade. Day trading will be more difficult because you need to search the potential coin to buy and sell, and the coin should have a good movement at the market. So why did 95 of traders fails is because they cannot learn more about trading, they follow other people suggestion without analyzing by themselves, they cannot manage how much money they should use for trading.
one month quit is a coward move.
those who really want to get in the trading business will keep moving on no matter they hit by a consecutive losses, meanwhile you learn from that losses you need to read books more, that is the key besides the patience which everyone have but can not do it.
the failure root come from the impatience i must agree with this, in the real trading business psychology takes a key role to affects any decision you'll go for, those who think & analyze with a cold head will get the profit as a rewards.
and then the next step after you successfully go through the psychological matters , you need to maintain the trading profit steadily, you need to be disciplined , this is the biggest challenge that every trader faced and mostly failure to make it.
that is why any survey giving that percentage, as human nature is to being impatience & undisciplined all the time, a perfect match.