pou kont....pou kont ou, pou kont li, pou kont mwen....I understand this to mean for yourself, her/himself, myself...I thought ou menm, li menm, mwen menm was yourself, her/himself, myself?? Can you use either?

You are right about ou menm, li menm, etc... meaning yourself, him/herself

Pou kont ... in Creole translate by self, which means alone.

pou kont mwen (literally on my own account) - by myself
pou kont li - by himself
pou kont nou - by ourselves
Example:
Li te aprann kondui pou kont li.
She learned to drive by herself (She learned to drive on her own, with no help)

Li te kite timoun yo nan kay la pou kont yo.
He left the kids in the house by themselves (alone, with no supervision)

See these helpful links:
Alone, unattached, by oneself
Mwen menm, ou menm - myself, yourself?


Haitian Creole ↔ English Reference, Look up Haitian Creole and English Words