Bhagavad Gita 6.5
उद्धरेदात्मनाऽऽत्मानं नात्मानमवसादयेत्। आत्मैव ह्यात्मनो बन्धुरात्मैव रिपुरात्मनः॥
uddharedātmanā''tmānaṃ nātmānamavasādayet ātmaiva hyātmano bandhurātmaiva ripurātmanaḥ
Meaning
Let him seek liberation with the help of his Highest Self, and never disgrace his own Self. For that Self is his only friend; yet it can also be his enemy.
Understanding this verse
Simple meaning
Krishna says: lift yourself up by your own effort and don't put yourself down. Your own mind can be your best friend or your worst enemy.
In real life
A student who keeps calling himself "stupid" changes his self-talk to "I haven't learned this yet." His motivation and grades improve.
A woman restarting her career after a break stops waiting for someone to rescue her and enrols in a course herself.
Try this today: Catch one negative thing you say to yourself today and rewrite it the way a good friend would say it.
What's your duvidha?
English translation by Shri Purohit Swami (1935), public domain. Sanskrit text in the public domain. About Duvidha