Crypto investments still could be interesting, even despite current situation. ICO investment is something like fundamental-only trading, as you have no charts, so you need to make a proper research and collect all the information available. You can also invest in existing cryptocurrenies, but in such case you should keep in mind that the probability of huge movement is low.
While investing in cryptocurrencies you should always remember about back holders - those who bought that crypto earlier and now just wait for the moment to sell it. Their sales could prevent the uptrends appearing.