If you quit you will missed the chance of your lifetime that crypto world can give you can plan your strategy cut lost a bit and change into fiat only if you think the market will have a much lower value and or you can hold and wait until the market stabilizes and goes back to normal if you plan to change into fiat you can buyback at a much lower price if the market goes down and you can save your cut loss. You can do both but not quit. You should erase the word quit in your mind.