Seeking approval can a bit complex thing to tackle. It's a combination of self-esteem, boundaries, and knowledge of oneself. You can't ever completely avoid people's perceptions of you, it's rooted in our biology and psychology to seek connections with others, and to compare ourselves socially. This isn't a conscious process either. Two things that can help you get a better idea of who you are and what you want is constantly asking yourself what do you want to do for yourself? What feels right to you in the moment? Then ask yourself the same questions with the added, "what if you didn't care what others think". You won't magically be indifferent of course. You can't ever be, that's perfectionism, but it does get you in touch with your own desires.
Another part of people pleasing could be lack of keeping your boundaries. You don't have to sacrifice your own desires for another person with the idea that they will like you more, and you shouldn't. We often like and respect those who are strong people, who can express themselves without shame and inhibition for being who they want to be. This is particularly difficult to do especially in those who always allowed others to control their behaviors and emotions. For that remember you are not responsible for what others feel or think, you are only responsible for your own thoughts and emotions.