when i have homework due the next day and i left it at school
i always start to worry, but my mom asked me"what can your worrying do right now to help the cause", and even though it took me a long time to fully understand this, but now i know... if it is going to be a long time untill your opointment, then be a little concerened, but dont worry your self to a point of insanity(thats what i tend to do...lol)

hope this helped