Is it true that its wrong to hold coins for many years and never look back? Someone said coins can die in just two years, they can also lose demand and hype under a year, so how do one hold with zero worries?.
Keep Bitcoin alone...then you can sleep well.
I'm not sure about "in 2 years", well, of course, shitcoins and those who are in hypes projects will even die earlier than 2 years. But if you invest in projects that have been known for their sustainability and well-established, we surely can breathe easily and feel calm despite the market corrections.
Just a piece of advice OP,
* don't check often check the market and your investment, as this will hurt you some time that leads to increased the level of your negativity.