Holding is the correct and most secure strategy. But you need to closely monitor the market and your portfolio. This market is very volatile and at any time there may be a strong rise or fall.
But if you're long term holder like you planned to hold it for years then you don't really need that much to monitor the market and of course you have a full trust to your coins that's sooner it will let you sit on profit.
Holding is really bullshit if you kept trash instead of throwing it in garbage.