Just holding will keep you free from any unwanted losses. Just hang on when the price changes, because we do not know the cause of the current market conditions and will definitely make new people panicked and sell their coins at cheap prices. This will be an additional cause for falling prices. The best thing is holding when the price is reduced. Probably one of the best advices about how to deal with this crash unfortunately I do not think that a lot of people are going to follow that advice, I really think that many are addicted to looking at their holdings and how they are doing, it should not be like that especially if you are a holder, even if I have not sold and I do not have any intention to do it I will admit that I'm guilty of keeping those sites open and checking them more than I should.
I think the best advice I can give is to hold and never sell when you do not get the profit yet. I can only give you that advice. It is the safest way to make profit, but it may take a long time. Just like long term invest, you need to be patience and do not bother about the bad news and the price situation. If you can do that, then you do not have anything to worry about. Just focus on collecting cryptos that you want, and invest as much as you can. So that when the price is increasing, you will get a lot of profit and the time you spend to invest will not be wasted. Never sell if you do not have the profit yet, not like some newbies who do not know anything about crypto.