I have posted these photos of my Peace Lily before in other threads, but will post it again here, just to show you Radishgal how bad it can go, and how the plant can still bounce back. Good luck, I hope it encourages you to try just one more time! I still see a lot of hope for your plant
Do not disturb the roots of your plant this time, just let it recover, it takes awhile, keep on the moist side, and eventually it will recover.
This July 2017, still going, alive and in blooming mode, my plant needs a repot and some dried leaf trimming, but other than that it still goes. Will wait till bloom time is done.
new leaves forming