you got to see for yourself, are you an invester or a daytrader?
if you're an investor you should look carefully to the altcoins you want and his technologie. If you like a coin or token and you want to invest in I would recommend buying it and this nice dip.
as a daytrader this is much more difficult and dangerous.
if you're a daytrader I would hold everything you have untill after all this red. I would recommend resting your portfolio for a while.
but I'm not a professional adviser so you got to see for yourself