Don't think too much
When you think you're being judged by the others, you're probably wrong. It's not easy to judge each and every person you see or meet and also keep in mind that people have their own worries, they don't have the time or desire to search for other people's flaws as well. You can test this by doing something differently and observe their reaction. Your friends or family would probably notice, but others just won't care.
Give yourself a High Five
Learn to catch yourself each time you're worrying about what others think. Remember the pattern of over-thinking and every time you do it, give yourself a compliment. That will boost your self-esteem just when it's needed to. When such moment occurs, give yourself a High 5, complimenting an aspect of your personality. Target the same thing or detail that you think people judge you about. For example: If you think that people judge you because of your loud laughter, try something like this: "I'm a happy person by nature and I'm trying to share laughter with others, which is always a good thing". See what I mean? Try to transform your over-thinking moment into a positive one.
Accept your uniqueness
Accepting yourself is not the easiest thing in a world to do. We all have our doubts and fears, but the important thing is how to manage them. When confronting with your self-doubts, this advice can help you in the process. First of all, you should write down the things you don't like about yourself. Now, take a closer look and see, if you can change them. Most things can be changed, but the main thing to remember here is your willingness to change. For example, if you want to lose weight, all you need is a little knowledge and a lot of determination. But it can be done much easier than you might think.
There are also some things that can't be changed, such as being taller. However, think the other way. Situation could be worse, right? Right. Accept things you cannot change and change those things you can change. Don't think about things you can't change, because that's just a waste of time. Besides, as the time passes by, you'll learn that some of those things aren't that important at all.
So, what have you learned here? I hope you've learned that people usually don't care as much as you think they do. You've learned that many things can be changed with a little determination and positive thinking. But most importantly, you've learned that the only opinion that really matters by the end of the day, is yours.