"Believe in yourself, for your potential is as boundless as your determination to succeed."

Atomic Habits

An Easy & Proven Way to Build Good Habits & Break Bad Ones by James Clear

The 7 Habits of Highly Effective People:  Powerful Lessons in Personal Change by Stephen Covey

You Are a Badass:  How to Stop Doubting Your Greatness and Start  Living an Awesome Life by Jen Sincero

The Power of Habit:  Why We Do What We Do in Life and Business by Charles Duhigg

Mindset:  The New Psychology of Success by Carol Dweck

Man's Search for Meaning by Viktor Frankl

Grit:  The Power of Passion and Perseverance by Angela Duckworth

The Obstacle Is the Way: The Timeless Art of Turning Trials into Triumph by Ryan Holiday

These books offer a variety of perspectives and approaches to self-motivation.

They can help you to identify your goals, build confidence, develop positive habits, and overcome challenges.