Sell high to buy back in low... Yes or No?

Hey guys,

Is there an argument to be made to sell high to buy back in later at a discount? I hate trading and trying to time the market. I want to keep things simple and accumulate capital over time. Yet with bitcoin it seems tempting to sell off high just to buy back in later at a lower level since there are exceptional on chain metrics for example the MVRV Z-score which seems to be very accurate in identifying tops.

Then again I assume that the times of 80% drops may be gone... also I think I would loose a lot on taxes when I sell high wouldn't I?

Or should I rather continue to DCA and try go get some excess fiat from elsewhere and buy the dip?

Maybe I have already answered my own question here already ... still I want to hear your thoughts and experiences with this.

For transparency I am currently sitting on a net profit of 100% of my total investments.