A palmful is much too much as a leave in. I have a lot of thick hair kind of ling and I use at most a pea sized amount for my whole head. I mix it with a gel or jojoba as my final step. It might help if you mix it with something and then apply another product on top of it, a little bit of leave in or oil or whatever you like.
Poo: KBB shampoo bar or Shikai moisturizing shampoo
CoWash: VO5 kiwi
Cond: Robert Craig, Tresemme Natural, or Fekkai Shea Butter
Leave in/Styling: Grapeseed oil, KBB milk, KCCC, and Aveda Confixor