It’s important to strike a balance between caring for yourself and caring for others. While it’s not healthy to completely disregard others, you can focus on self-care and personal boundaries. Here are some steps to help you not care excessively about what others think or do:

1. Self-awareness: Understand your values, priorities, and goals. This will help you prioritize your own well-being.
2. Boundaries: Set clear boundaries to protect your mental and emotional health. Learn to say no when necessary.
3. Self-compassion: Treat yourself with kindness and understanding. Avoid harsh self-criticism.
4. Focus on your own growth: Invest time and energy in personal development, hobbies, and interests that fulfill you.
5. Mindfulness: Practice mindfulness to stay present and reduce rumination on others’ opinions or actions.
6. Seek support: Talk to a therapist or counselor if you struggle with excessive concern about others’ opinions.

Remember, it’s natural to care about others to some extent, but finding a healthy balance is key to your well-being.