Haircuts that make you more attractive
The Perfect Haircut for your Face Shape Round, Long, Oval, Square and Heart Face Shape
Though, obviously, you can do what you want, there are haircuts that look amazing just on you and a few that aren't as flattering. This may be why you have been less than excited in the past with an otherwise perfect hairstyle.
The key to a flattering hairstyle is finding one that creates the illusion that you have an oval face. There are cuts that help make a round face appear longer, a long face appear wider, a square jaw appear softer, for instance. There are also cuts that make large foreheads and double chins basically disappear. Here is a basic video to help you start. Good Luck