I believe long term hodling is still an effective way to gain profit if you're not good in daytrading that requires time and knowledge to be able to do it right. But its important to make a research in the coin that you want to hold for long period, make sure to know every details of the project and invest only the amount you can live without so whatever the situation of the market you can still follow the plan and your target price on when to take profit.
Yes, to avoid losses of coin this is the smart thing to do because we encountered dump right now and we don't know how long it will comeback due to the unpredictable market. Instead of selling those coins much better to hold long term investment.