From my view, just buy and hold. Thats it, if the price drops 10% or more buy more heavily, if it increases a bunch maybe take the gas off the pedal a bit. Try to DCA every single paycheck you receive.

Also, try your best to not look at the fiat price as hard as that can be. Don't invest what you can't afford to lose, but more importantly, stay very consistent and measured with your strategy so you don't get shaken out.