Well, whenever I have earned 50%, I will withdraw 25% of my profit. That is my way to secure my profit. And I will use that funds to invest in other places, such as gold, bitcoin or real estate which are more safer. You can follow my way if you want to.
I will do the same, I will withdraw some of my money them hold the remaining through my ledger wallet. Thus, I secure my profits through cash out and through the safest wallet.