Not only icos but also very important and leading projects fail too. There are a few projects gain success. Even their success is temporary. No surprise due to the bear market.
Now is truly a hard time for the market. Not just icos are struggling, even the leading coins too. We can't know when will this recover. We could just hope for the best to come. In the positive light, this time is best for buying potential coins and wait for a good return in the future.