Back in 2010 during and after radiation it was all liquid for several months, mostly commercially available formulas, I did find that “instant breakfast” was well tolerated.

These days Aldi has a store brand meal replacement that’s decent.
Taste ultimately came back and I had several good years, spicy stuff still hurt, but, life was good.

Go liquid for awhile, at least it’s going to sustain you.

Use lots of biotene, the lack of saliva can be very hard on your teeth. Bottle of biotene was in my pocket for several years, now since I lost mu tongue this go round I have an over abundance of saliva and can’t spit worth a darn anymore.

The worst part of that summer was my sense of smell was great, I worked at a world renowned theme park and the restaurant aromas would drive me crazy on nights I was working audience control directing people to their buses.

With a handle of ManateeDon you may be aquatinted with said theme park as we may well be in same part of the country.
Good luck, this will pass in time!