Long term ETH staking

Ive been holding some ETH now since 2021 and Im very bullish on its future.

I was trying to strategize my holdings and was thinking of staking ~30% of my ETH on CB. I’m talking like, keeping it staked for 10/20/30 years while having my other 70% on hand to trade/liquidate whenever I want.

Wondering if this is a good idea and wanted to see if anyone out there was strategizing similarly. Thanks!