Remember that hair grows forever, it doesn't stop. If you go out on a limb, drastically change your hairstyle and end up hating it, it can always be changed to something else, another style or color. Talk to your stylist to see if they have any fun celebrity hairstyles for you. You never know, they may have a style that they have been dying to try on you, but never had the opportunity before. Most hairdressers won't try to push a new style on you (nor should they), but if you ask, they love to share their creative side.
So, it is very important to choose the right type of hairstyle after making proper research. If you are young and trendy, you might also like to experiment new hairstyles. However, try to get a computerized image of yours with that hairstyle before trying it. And try to take suggestions from friends and relatives as they might give a good idea on whether the particular hairstyle would suit you or not.