It looks like it may be a fungal or bacterial disease due to the white substance you mentioned. The leaves are folding up because the water is unable to be carried to the rest of the plant.

I wonder if it has root damage or if the neem oil is suffocating it,it looks like the spear is healthy at this point.Is it getting watered evenly?and did it start doing this before you sprayed it or only after?When was the last time you transplanted it?It looks to me like root damage of some kind(possibly from oil getting into soil)or the leaves suffocating.

It looked fine after the neem oila month ago. when I watered it last week it immedietly went downhill I mean 1 day. even the spear looks like its drying up like the rest of it. It was perfectly healthy until I watered it. I only used the neem to get rid of whatever was on it. It was spotty and after closer inspection it had made its way to the trunk. Kinda looked like flour that you would bake with
so i sprayed with neem and gave it a good shower and all was fine until I watered it again.

Hard to say for sure,hope you don't lose it.I have had a problem with white spider mites this winter and have sprayed my palms etc to often and have had 4 with spear pull,probably from oil getting into crown and contributing to bacteria growth via suffocation etc.I guess on the brite side there are a lot of good deals on e-bay for T.forts.Good luck with yours!

That white substance must be mealy bugs. They also live on roots so check 'em up!!! They might be suckin' all water with nutrients from the roots so the leaves don't get any water and keep drying out. If you spot them on the roots (a magnifying glass may be useful) you can fight them off giving your plant a bath in hot (50 C/122 F) water for like 5 minutes. Or just spray and water your palm with a systemic insecticide (read the label first).
You may also try to bring your plant to life spraying it with a plant growth stimulator like Asahi SL/ Atonik SL (don't know if they're available in the U.S.) or something similar.
Good luck

gary,,,, It will be ok,,,The pot size looks a little big too me,,,,and the soil appears to be wet,,, The white stuff,,,mealy bugs for sure,,,looks a bit sticky too,,,scale?? Just dont water it until it almost dries out,,in the meantime get rid of the pests,,,,wash everything ,,,then if you did just repot it,,,I would put in a smaller pot,,,,It will make it much easier to care for,,and will eliminate the chances of overwatering in the winter,,,,I would also put it outdoors if the weather warms up,,,the shade of coarse,,,,good luck!! Bill