My mystake is that invested all money in other things and now I dont have money for trade with altcoins but I would earn a lot in this 3-4 days with altcoins,all my predicitons about altcoin prices where correct.
i think mistake in trading is a very common think everyone much have the experience of making mistake in trading. because no one can be perfect. for example in previous days when the price of bitcoin reached to 1150 USD i made a big mistake that i still hold my bitcoin and not sell it, because the price of bitcoin after that comes down to 740 USD round about.