"What you think of me is none of my business." – Wayne Dyer
What would your life look like if you were literally unable to worry about other people's opinions?
What a freedom that would be! You would live according to what you thought was beneficial for you and make decisions without second-guessing, over-analyzing, and shoulda-coulda-woulda-ing. You would no longer have any need for approval nor fear of disapproval.
The truth is, we don't have any need for approval. Not truly. It is our egos that crave approval and fear disapproval. The mind loves to take things very personally and attempts to gain power through approval and disapproval games. When we separate ourselves from our ego, approval and disapproval have no value whatsoever. And nothing is taken personally.
In reality, another person's thought or opinion about you is never personal, because it is never really about you in the first place. It's about them. Our thoughts about anything and everything are only about ourselves. As Byron Katie points out, what I think and what I feel is my business. What you think and what you feel is your business. When I'm worried about how you feel about me, I'm in your business. And if I'm busy living in your business, how am I present for my own business?
When we let go of worrying over other people's opinions, we are free to reflect on our own opinions of ourselves. Am I happy with myself? Did I make the right decision for me? Am I happy with how I treated you? Am I living in healthy and positive ways, for the highest good of everyone involved?
Living according to our own truth is one of the highest acts of self-love and self-care. And when you live according to your truth and stay in your own mental business, others will honor you and the truth you live, too, whether they agree with you or not.