Some people say hold your crypto, some says sell immediately that holding for long is useless.
What do you believe and practice?
You need to carve a niche for yourself and adopt a strategy that works for you. Decide when you should, how long and what coins you should hodl. Everyone has strategy. Follow the news around your coins of choice. It's very important
Exactly, we have different opinions about how we make profits in cryptocurrency, and if someone said a negative thing about holding for long is useless, then I guess it depends on how he would hold his coins, if he has a purpose on what he is doing, you don't have to worry at all. What others do on making profits by holding is base on how much they know about that certain coin, most of them know that in the right time, it will skyrocket and they are going to make huge profit.