I'll always keep in mind the number 4. I would do stupid selling in my coin. I will hold it even for years. The only strategy I got is buy low sell high. If you want to gain do this and you will surely be rewarded
this is the difference between traders and holders..traders would use stop loss and wont let their money sleep for a very long time until the coin recovers..traders usually stop the possible losses by selling and look for another good entry in the market and holders won't sell in loss even it took them so many months or even years..