I participated in one project three years ago. So when they went public, there was incredible growth, but I decided to wait, as they predicted a higher price. And now for the third year this is such a small amount ... less than I bought ...
I also bought Merculet ICO, this project was very well promoted in 2018 and I participated in it. But until now, I don't see any news from them. The group seems to be dead and no one is active there, so never try to hold an ICO for a long time. Sell as soon as listed at the exchange or make a profit