Everyone is different. We look different, we think different, and we all have our own stories that are uniquely personal. To me that's a beautiful thing. It's unfortunate that in a world made so beautifully diverse that there is an immense amount of pressure to conform and be something that we're not.
Never be sorry for not being a certain way.
Why? It's simple: the more unapologetic you are about the way you carry yourself, the more you'll feel at ease.
Stressing out about what others think about you isn't worth the hassle. It's time consuming and unimportant.
One of the best ways I think people can express themselves is through their style. It's a way to showcase your personality in ways that cannot be done otherwise. This is also where most people tend to shy away from truly expressing themselves to conform to what society is telling them to wear. When you change your outfit ten times before deciding on what to wear make sure you ask yourself, "am I changing because I personally don't feel great in it?", or "am I changing because I think others will think I don't look great in it?"
If its the latter, put the outfit you felt most comfortable in back on and you do you. If you're confident in what you have on, then it will show in your demeanor that day.
Style is one thing, but personality is a different kind of unique that you should never mask. Sometimes the pressure to fit into a group of people is so suffocating, that a person caves in and becomes something they are not just to be accepted into a group of friends. This is something that I saw myself go through in high school, and again for a short time in college, despite trying to convince myself it wasn't happening. It took a few reality checks to realize that finding people that like you for who you really are is so much more refreshing. If you pretend to be something you are not, then you'll miss how it feels to be free of the stresses from others' opinions about you.
Once someone takes the time to get to know the real you is when you can start to care about what they have to say. I say this because even though ignoring the negative is important, others opinions are not always invalid and at times can provide good insight even if you agree to disagree. Be who you are so you can find those people that take the time to value the unapologetic you.
However you chose to believe we were made, we were done so to leave our mark on the world in a way that no one else can. Never let others make you feel sorry for being you.