Sometimes is a defensive thought, sometimes its an offensive one. I'd never sell it all, but converting some to another tangible asset has its merits.
Diversification in any market or real estate is not bad, money has to be moved, if you see potential in another business and you have any intuition about it, you should carry it out, those things sometimes work, I learned it in one of the tips from Jesse Livermore, intuition often works best.
But now if you have your investment in Bitcoin, I advise you to wait and have some patience, there may be a big bullish movement.
At the time of writing, the BTC/USD pair is targeting $61,000 again, less than $1,000 from all-time highs. Among analysts, expectations of Bitcoin reentering uncharted territory are predictably high. In this opinion of an article they talk about a possible leak, which means that at any moment we will most likely see a new bitcoin ATH:
“Another breakout attempt,” on-chain analytics service Skew summarized.
Source:
https://cointelegraph.com/news/record-btc-weekly-close-ethereum-all-time-high-5-things-to-watch-in-bitcoin-this-weekI think that the best investment of all is with Bitcoin, as time goes by, bitcoin will always gain more value.