If you eat mashed potatoes, be careful. When my surgeon turned me loose 6 days post-Nissen he singled mashed potato out to demonstrate how a soft food can get stuck. Be sure they are watered down with plenty of milk, and whipped.
Really, chicken, toast, crackers, of course squash, crackers...all those things can be taken in small bites and chewed to a liquid consistency. Clam chowder, minus the clams, can be handled well as long as you are taking small bites and chewing everything until it's a liquid. Your mouth works as well as a blender if you're careful. As I said, don't swallow anything that isn't chewed thoroughly.
Once your esophagus is healed, you'll be fine.
Words of wisdom by Eckhart Tolle:
"Whatever you fight, you strengthen, and what you resist, persists.”
“Worry pretends to be necessary but serves no useful purpose”
“Accept - then act. Whatever the present moment contains, accept it as if you had chosen it. Always work with it, not against it.”