Setbacks, a Part of Life

I have said many times in posts before about how I'm going to be finished with school come August of this year. Everything seemed like it was going down that road. Well, yesterday I found out one of the classes I'm taking during the summer got cancelled. Great! It's offered twice during the fall, but I don't want to stay here for one class. Then I was told to screw the summer classes and just take those classes during fall and take the summer off. Honestly, I don't want to wait any longer than I have to do. I'm meeting with my advisor tomorrow and hopefully he can tell me that this class is offered online elsewhere, or if I can do something else in place of it, or get it waived. This is the same advisor that underestimated my ability to do anything. He didn't think I could handle an independent study...well I've proved thus far that I can. So until I meet with my advisor tomorrow I can't say which way this is going to go. I'm hoping in my favor. It just seems that nothing as of recent has come easy for me. I keep stumbling upon these setbacks. So far I've been able to get around them, but not without working at them first. I know setbacks are a part of life, but I look around and everyone seems to be so successful and don't have to go through these issues. It's just one class! Why do they do this? I've been told that setbacks make you stronger. If thats the case I will be the strongest person I know. I'm afraid that I will have wasted all this time and energy I will have nothing left to fight for anything else. I want to graduate so bad! It's what I'm fighting for right now and I'm not going to give up!