Adding to your opinions:
Yes it is self motivation which is permanent solution. But before understanding about self motivation let us find the difference between the Motivation and Self motivation.
Motivation: Motivation Is the first step to reach Self Motivation. And Motivation is temporary in its nature and gets only thru external factors either thru praises, gifts, promotions, hikes ,increments etc. But in the absence of external factors immediate opposite result would be de motivation.
Finally we lie either of it .
Self Motivation :But whereas Self Motivation is a status and which is permanent and everlasting . In this
Stage External factors neither touch you nor trigger.
How to Achieve it:
1.Observe with full awareness the Motivated status and its effect on your Mental, Emotional and physical layers.
2.Capture this status and start remembering as many times as possible. And slowly let this positive feeling imbibe in your personality.
3. After some time you start living in the same Motivated status where you are completely charged and you do not need any support from external factors to tune you any more.

Best Regards
Triveni