Not sure this will help, but you got the job right? So they decided that they want you, right? Why not try? Don't take something away before you try. Let them decide if they want you. Everyone is nerves about new jobs. That is the worst thing in the world, I hate it. But I find that it is rarely as bad I I think it will be. You always fail at the things you don't try. So get all mania'd up and do it.