I joined an ico in january 2018 and it was a bad ico. The price of this ico is 1/6 of the ico price and i lost about 3000$ if i sell now. Someone can tell me what should i do? Sell or countinue Holding? 
The market is constantly fluctuating and can not say anything before, so in order to successfully trade you need a lot of factors. The prices of the altcoin in recent days are falling sharply because of the huge impact from the bitcoin price drop. The market is bearish so I think you should not hold any coin.