Clearer mind

It took causing pain to have a clearer mind, but not clear enough. I'm doing my best. But there seems to be other things going on. I was able to clear my mind for a few hours but I'm almost not sure that it will last. Since the thoughts lasted for more than a week, Will one time be enough to keep my head clear? And that's where I'm almost afraid that having the pain is the only way to keep a clear mind. Agg, I just hope I can think in the next few hours to do homework.