Hi ladies! I've been doing a side part in my hair for way too long, and I recently discovered that diagonal is much more flattering, it gives my flat limp hair some volume and texture. The only problem is my hair does not agree with me! I put a diagonal in when I get out of the shower, and by the end of the day it's gone and my hair is doing whatever the hell it wants. Any tips or tricks for retraining my hair to go where I want it to? Or do I just have to be persistent?