For me, it is hard when things are not in my control anymore; when I decide on something for my life and do what I need to to get it but then it is out of my control, I can't start learning or working or do any more until someone else's schedule is met. If I decided I did not want to start a class until October, that would be fine; I'd have no trouble waiting but someone else deciding I cannot start until October, that's not my schedule!