You will surely be missed by many at least I know by me. But It sounds like you will have lots and lots of fun. I don't think I have ever ridden on a train. But I get car sick if I am not driving so I would imagine I get train sick as well. Hope you don't. Say hi to mum for me. lol Hopefully you can check in once in a while this wk.
Oh and don't forget to take pictures. And meet as many famous people as possible. And make lots of money for your trip in Sept. Have a nice shower!