I am 18, and my feet are still going out. It seems to be a foreign character, right? Always land on the outside of the foot first.
Walking posture is very important, representing a part of a person's temperament and image. In fact, I used to walk in a figure of eight, but now I have corrected it. I look in the mirror for an hour every day, and often let my friends or relatives remind me that there is nothing shameful. The shame is that you don't want to believe that you will change. Don't worry.