Here are 30 positive affirmations to help build self-confidence and self-esteem:

1. I am capable and competent in all that I do.

2. I trust myself and my abilities, and I know that I can achieve anything I set my mind to.

3. I am worthy of love, care, and respect – from myself and others.

4. I am unique and special, and I celebrate my individuality.

5. I am strong and resilient, and I can handle any challenge that comes my way.

6. I believe in myself and my abilities, and I know that I can succeed.

7. I am deserving of happiness and fulfillment, and I take steps to achieve it.

8. I am confident in my thoughts, feelings, and actions, and I express myself authentically.

9. I release all self-doubt and criticism, and I focus on my strengths and positive qualities.

10. I am proud of myself and my accomplishments, and I acknowledge my progress.

11. I trust that I am doing the best I can, and that it is enough.

12. I am beautiful, inside and out, and I love and accept myself just the way I am.

13. I am confident in my decision-making abilities, and I trust my intuition.

14. I am worthy of taking up space and being heard, and I express myself confidently.

15. I am not defined by my mistakes or failures, and I learn from them instead.

16. I am a valuable and important person, and I contribute to the world in meaningful ways.

17. I am grateful for my strengths and talents, and I use them to make a positive impact.

18. I am confident in my relationships, and I communicate effectively and assertively.

19. I trust that I am on the right path, and that everything is working in my favor.

20. I am strong and capable of handling criticism or feedback, and I use it to grow and improve.

21. I release all comparison and competition, and I focus on my own journey and progress.

22. I am confident in my emotions and feelings, and I express them in a healthy and constructive way.

23. I am a work in progress, and I am patient and kind to myself as I grow and learn.

24. I trust that I am enough, just as I am, and that I don’t need to change or improve to be worthy.

25. I am proud of my resilience and ability to bounce back from challenges.

26. I am confident in my creative abilities, and I express myself authentically through my passions and interests.

27. I am deserving of abundance and prosperity, and I trust that my needs will be met.

28. I am confident in my values and principles, and I stand up for what I believe in.

29. I release all fear and anxiety, and I trust that I am safe and supported.

30. I am a unique and valuable contribution to the world, and I make a positive impact on those around me.

Remember, to repeat these affirmations to yourself regularly, especially when you’re feeling uncertain or doubtful. With time and practice, they can help you build a stronger sense of self-confidence and self-esteem.

Would you like me to come up with more affirmations or is there something else I can help you with?