Motivation is a character's inner drive, the thing they want out of life and can't get enough of. Motivation is not a goal - it is what explains why a person chooses or rejects goals. It doesn't determine every single goal (because everyone has needs that must be taken care of) but it spotlights the most important goals.
Motivation can be fed but never fulfilled. It is never done. If you propose something that can actualy be completed, that is not a motivation - its a goal. Ask yourself why your character wants that goal and you'l be closer to a motivation.
One to three words. No longer.
Bêlit's is motivated by revenge.
Amass wealth
Earn glory
Gain respect
Accrue power
Achieve status
Earn recognition
Obey duty
Discover truth
Do good
Help others
Perfect self
Gain knowledge
Indulge pleasure
Fulfill destiny
Stave off boredom
Satisfy wanderlust
Instill chaos
Slake anger
Mete out justice
Spread the faith
Take revenge
Climb the ranks
Build a following
Prove your mettle
Master a skill