The hardest time to invest is in a bear market. You end up purchasing little amount of tokens for more ETH or BTC. But it's also a good time for projects to collect good sums of money during their crowdfunding, as ETH or BTC goes up, so does the value of the funds raised.
The question now is, will you invest in ICOs, or stick with investing in market dips (buy low, hodl and wait to go up and sell), or simply trade in bear markets?
I don't take the risk to invest in the difficult situation because we have no opportunity to give get the success in bear market so I am waiting to take the best chance otherwise I don't do Lots of stuff in this type of situation especially if it was affected my future I don't really do it