First, Iād like to say that I am NOT a financial advisor. This in just my opinion.
If you have used fiat that you know you can lose, don't think about selling! I mean, I can't tell you that's what you have to do but it's probably not a good idea. If you sell now, you will sell at a loss (if you bought in high, of course). You can't sell at a loss if you don't sell!
Always spend what you KNOW you can lose!
I've put in $1,500 when the price was above $700/BCH. It sucks but I have faith in Bitcoin Cash. I will not sell any of that back. I fully intend to use the crypto as it was made for, cash!
Buy From Merchants
Try finding merchants that take (and hold or use) Bitcoin Cash. It's a bummer to find merchants that convert to fiat right away. I think we're drifting away from that mindset though as more and more people are coming to the realization of what Bitcoin Cash is.
I was browsing Reddit a few days ago and saw a user posted that they are now accepting Bitcoin Cash. The person sells small, hand held, wooden finger pianos. I've never played or heard such a thing but I wanted to support a business that accepts and utilizes Bitcoin Cash. I bought one.
You can find the company here. They appear to be based out of Ireland.
If You Can, Buy More!
Markets are, for the most part, very unpredictable. I think now would be a great time to buy, however. Personally, if I hadn't bought $1,500 worth (only a few days ago from me writing this), I'd be for sure, buying right now!
Sell For Fiat If You Must
If you're really in the need for fiat, sell. I get it, life throws curve balls sometimes. If you must, just sell only what you really need. Keep (and spend/use) the rest.
Nice idea