Don't buy clothes that do not flatter you, regardless of whether it's the trends this year. For this it's essential to know your physique, which I will discuss in upcoming posts.
Try not to get too matchy-matchy or too polished. It's great to mix things up and be a bit more fun. A 2 piece suit will very quickly look old. Nicer to mix that jacket with one more skirt or pants and look effortlessly chic.