A desire strong enough, that back to back failures can do nothing else but motivate you. The reality implies that a failure is inevitable on the path to success.
A lesson that can teach you, a philosophy about life. A goal must be set, a realistic one. A plan, a diagram that states the steps, a strategy and a timeline all with a deadline.
Humans tend to quit when they can’t see any possibility of being successful.
A mission where you succeed with small steps can motivate you. Ask yourself if you can achieve what you have set as a goal.