Correction was inevitable once $5000 was touched, and the uncertainty over Chinese exchanges just compounded this. We're not out of the woods yet, for sure.
As a hodler (of a few cryptos, not just BTC), I just ride out these lows. I remind myself that these prices aren't even that low. Just look at prices of all coins a year ago, to see how far the crypto space has come.
As you rightly say, dips are a nice opportunity to buy with fiat. Its a game of patience, and requires one to be able to wave goodbye to any money invested for a good long while. Think of it like saying goodbye to friend at the prison gates - you'll see them sometime down the line, they'll be stronger once the come out, perhaps with a 1000 yard stare...