The 'gunk' in her eye is an indication that there is an infection going on. Untreated, an infection in a sugar glider will most likely get worse. If the bacteria causing the infection gets into the blood stream the glider develops what is called 'sepsis' which can cause a glider to go down hill VERY quickly. Thursday may be too late to for your glider.
I pray she will improve, but vet care is a immediate need. Is there anyone that could take her to a vet for you?
If you can find a local vet that is willing to consult with a vet that has glider experience, you can give the vet this information. These vets are willing to talk on the phone to other vets to help them choose the best treatment for sugar gliders even if they are not very familiar with them.
http://www.gliderkids-diet.com/VET_consultants.pdf
You cannot contact these vets yourself unless you are close enough to one of them to make an appointment to have them see your glider.