Why do I always have that constant fear of being judged by the way I look or act or even speak?

You want to be accepted. Sadly people sometimes do judge but your just very aware but sometimes its not anything. Just be care free life all works out in the end.

It is common to fear what others think about you but it is not something that defines you, you need to feel good about yourself and try to build your self esteem.

Because you could be trying to seek validation from other people. You think they are so better You. You might think their words are more reasonable than yours. You need to look beyond all that and start telling yourself your worth more. You need to step out of your comfort zone and be the driver of your own life. All you need is for you to have extra confidence in yourself and know that you are original. Never be a wannabe but be a limited edition and always remember to practice positive self talk . Always remember to choose you in any situation