Well, for some coins a couple of years is not a time term. I can wait. Moreover, I initially knew when I invested in several projects, that I would have to wait year or two. Therefore, I'm not upset. Of course, I would like the market to recover faster but nothing depends on us.
But there are some projects which are of a more high potential and some projects have lower potential to raise in value so if you have your money in some projects which have lower potential to increase in value then you have to shift your money to a best project to gain a high return than your previous one.