It is recommended to adopt a personal mantra, which you keep for yourself, to use as a tool to keep yourself on the right track.
If you would be able to hum or sing your personal mantra or any other
one, before you get into a state of rigidness, is quite an achievement. To transcend the negative thought waves before their arrival, protects you from wasting energy on negativity.
Thinking you will never succeed, harms you and your motivations. By assuming you’ll succeed, you’re more than almost there.