Sick 2 day old chick

So, a little background, I am guessing that my incubator wasn't humid enough, i lost alot of chicks mid hatch. two of them were almost out of their shells and just died. One of them took a little more than a day to hatch, and after that I decided to help( about 10 o clock last night. The membrane dried onto the skin as well as one of the eyes. I held the chick in a warm wet paper towel and changed the towel a few times, trying to keep it warm. I wiped the membrane with a warm wet paper towel to lossen it and got it all off, I think i lost the eye, it isnt bleeding or anything, he just wont open it. I put him back in the bator and hoped for the best. We took him out this morning and put him with the other 4 that survived and are eating and drinking just fine ( i hadnt helped them to hatch) but the one i helped just lays there with one of his legs out behind him. He either cant or wont stand on his own. I have tried to help him drink. I have put just a few drops of sugar water in his beak, but he still just lays there. I am getting really worried about him. When i pick him up he opens one eye and his mouth and seems to try to pick up his head but just cant. I dont know what else to do. (I also wiped his bum, it was kind of pasty, but didnt appear to be blocked) thanks for any help