When people have long hairs and they are in hurry then sometimes they tie their hairs or braid them. But when you have short or medium hairs it is probably required that you must have proper hair cut in order to manage.
For doing so, in advance, plan 2-3 days before occasions. Contact your hair stylist, plan some good hair style according to your hair length. Here I have a collection of medium hair styles.. Must take a look at these.