You have things you endorse objectively, and things you feel emotionally.

For example, I have a crazy-style haircut and I know it doesn't matter what people think--at least when I calculate the cost-benefits of my look, I find it makes sense objectively. However, I get uncomfortable by people's stares, looks, and criticisms.

I think happiness involves to some degree a synchronicity between what you feel and what you endorse. You ultimately want to do what you think is right and best for you objectively, but emotionally, your heart may give you constraints. Some sort of compromise is in order.