Try a little harder to be a little better. Live life to express, not to impress. There is no competition because nobody can be you. So true, do not get intimidated by those people who do not like you. Be like a diamond, precious and rare. Not like an ordinary stone found everywhere. If you are not comfortable dressing up, dress up! Practice it. Little by little until you will get used to it. It is all about progression. Begin by conditioning your mind that you need to do this and the reasons why you have to do it. If you are contended being simple, now is the time to make changes. There is nothing wrong with simplicity, but it is of your advantage if you know how to improve yourself and level up with society so you can have a better place for you.  The more intimidating people you meet, the more you need to increase your quiet self-confidence. You must overcome this intimidating feeling or else you cannot proceed to the direction of your journey if there are emotional and mental disturbances along the way. I am talking about reality in all aspects of life. Your life! Just like buying clothes for you, there are expensive ones while some are affordable. It does not mean buying the higher price looks stunning on you and of good quality. Endpoint still would be how you carry yourself while wearing the dress regardless of how much you paid for it.