If you’re in it for the Long-Game, then these drops — in the short-term — may be disappointing. But if you’re committed to a long-game, then play it.

Will it change again?
Yep.
By the way, if you have stock in only one or two of FB, AAPL, AMZN, NFLX, or GOOG (or FB or MSFT or any other tech) remember the very old adage: don’t put all of your eggs in one basket.
Diversify.
It may seem that I’m picking on Apple* here. I’m not. I’m just using it because it was the alphabetically first in my newsfeed.
Every stock has taken a hit.
And they will for the next few months at least. Disappointing, perhaps. But don’t let it discourage you when you consider, over the longer term, it has consistently shown an increase.

To summarize:
Don’t throw out the baskets you already have, but look at distributing your eggs amongst more than just a few baskets.
*Also, Apple seems to have accelerated their plans for rolling out the Apple Card. Will that change the date it’ll become available? No idea. But they certainly appear to have made efforts to increase its promotion over the past day.