I still hold half of my bitcoin because I sell the half of bitcoin last year where the price hit the $20000. I'm still waiting for the bull and green market so I can sell out the rest of my bitcoin and I will by new altcoin and I will hold it again.
What you mean with 'buy new altcoin and hold it again'? That you're aiming to buy into a coin that hasn't proven itself in the hope it becomes the next Bitcoin or Ethereum? I doubt you'll succeed by following that direction.
99.9% of the altcoins won't ever manage to blow up like that. In the short term some of them might do x100-x1000 but you can't possibly know which coin it will be. If you think utility matters here you're wrong.
Coins will pump regardless of the utility they rock. All that needs to happen is Bitcoin to start bubbling up, and the rest will follow. At the end of the day, it's your money so you decide what to do with it, but at least use common sense.