Making Meshes

Hey, I really need some help! I'm trying to make some custom hair since I can't find what I'm looking for anywhere. I'm trying to make an extremely long purple anime ponytail. I've downloaded 2 cc's to take parts from (with permission). I got one long black hair for bangs, and one long blonde ponytail for the ponytail. I put the 2 together in blender and successfully created my own mesh. When I went to import the mesh into s4s, I didn't know which hair to put it on. When I tried importing the mesh onto the blonde ponytail, nothing changed. When I imported it onto the black hair, it took the shape of my mesh and made all the hair black. I saved it as a package file then recolored it to be purple. Then I put both the black and purple ponytail in my sims 4 mods folder but now my sim turns red and white with question marks. Can someone please help me?  
I also spent hours on this last night so I'm desperate for it to work  

Here's a link to the folder with all the files n stuff on google drive
link to folder