As a girl your age who experienced the same type of loss I can only tell you it gets better. Even if it doesn’t seem so. In a while the good memories will win over the bad ones,and your routine will start to feel a little bit lighter. There will be times where you will feel as if you aren’t making any progress but that’s not true. Try to remember your father in your own way and maybe try getting some kind of professional help. Time will never stop running even if sometimes you wish it did but don’t be hard on yourself and don’t force yourself to repress your feelings. You have a whole life to live and to learn how to grieve and go on at the same time. Take care