I think the most important thing is to get rid of my bad posture slowly. For example, whether you are sitting or standing, you should always remind yourself to hold your head high and exercise more at ordinary times. And when I see my friends walking with me are not straight, I will gently remind them to walk confidently and walk out of a beautiful posture. I believe that if you stick to a good stance, you will get better gradually. Of course, you can buy some auxiliary tools.