How to AVOID taking profits?

I know this sounds dumb but bear with me.

Me, as well as other people who invested in SOL might be wondering this, you buy this thing for $10, maybe as a joke or maybe because if it does recover it will be a lot higher, time passes and against all expectations and plenty of due dilligence highlighting the bearish outlook on SOL, this thing is now $100, and we are not even in a bullrun, how can i stop myself from getting greedy and cashing out and instead leave the coins on my wallet for the next 2 years? How do i stop myself from wanting to sell the moment i see 500% gains?

It’s consistently hard to pick a project because on paper some look a lot better than others but when i look at Matic or XRP their charts are vomit-inducing and definitely make my wallet run for the hills, so i have decided to put all my eggs in one basket in the nice little Solana universe with all it’s memecoins and suddenly free-of-outages network.