First thing first , No one has the exact same style. There's going to be things you like , that the next person will not; or vice versa. Correct ?
The key is having the confidence that you can pull it off & feeling completely comfortable in what you're wearing. If you're not comfortable for one reason or another , don't wear it. You need to be comfortable to feel confident.
If you try something on and you're like "I really like this , I look good" , WEAR IT ! If the second thought that follows is, "Others might not agree" , remember that was your SECOND thought. Remember your FIRST ! As long as you're happpy with it , you feel good in it , you think it looks great , that's your confidence to wear it; And with those postive thoughts , with a smile on your face , that seperated you from wearing it , to now ROCKING IT !