Even if you are a hodler you should know when to buy a coin and when not to. You can double or triple holdings for your coins. I am not a pro trader or anything but I am far from a noob and know when to buy and when not to.
You can make 1000% gains 10 times but you only need to go -100% once to lose it all. Don't margin trade if you don't know what you're ding. There is a guy who went from 3 btc to 200 btc to 0 btc. Pls don't be greedy(Its hard in crypto but you can try).
Remember, bulls make money, bears make money, pigs get slaughtered.