When getting on the Hogwarts Express, assuming you have your luggage, owl, and books as well as your handy-dandy wand, you must go to the muggle train station and run into a huge pillar. Don't think that I am crazy, that is part of how you enter the train station. Once on, find some nice people to sit with, or an empty cabin, or else you may be stuck with some fellows that might give you a wedgie with the wave of a wand. 

     Once sitting down, you are trouble free, that is if the train stops and a dementor comes aboard. If this happens, do not panic but make sure that you or any of the others sitting with you know the Patronus charm, to send that dementor away. Be careful not to get too close to the dementor, for they are foul creatures that suck up happiness.  If one of the people in your cabin has passed out, try to wake them up and give them chocolate. Believe me, it helps. 

     Several other things can happen on the way to Hogwarts. If by chance you miss the train, try to find a flying car, but make sure to be secretive about it. If not, you may end up working in detention, or getting in trouble with the owners of the flying car. If, by chance, the owners are your parents, I would not recommend taking it without permission.  

    Once at Hogwarts you won't need to worry about getting on the train until you go home. On the way home just make sure that you have all of your belongings and follow the same procedure. I assure you that you won't miss the train back, unless you really are that full of tardiness.