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? 
Update yourself on the possible development of the project it would help you to know if there is a future on the coin you are currently holding. You could also join in the telegram, twitter or social media so that you can get the latest news about the project itself. Holding is not bad, always consider it because great thing comes to those who are patient enough to wait.