Be honest with yourself and only keep items that you love, fit well, and make you feel confident.
The first step in creating a capsule wardrobe is to take stock of what you already have. Empty your closet and lay out all your clothes on your bed or a large surface (I know, this part sounds unnecessary, but trust me, it really helps to see everything out all together). Sort your pieces into three piles: keep, donate/sell, and undecided. Be honest with yourself and only keep items that you love, fit well, and make you feel confident.