Focus and Concentration

My issues that I have since I've been in college is a big one, which is my ADD. Attention Deficit Disorder is where you can't focus on something for a certain amount of time, because you get distracted by something that could be so little or big. With me being a typical student athlete I forget my important things that I need to do in the morning is take that medicine. Most of the time I forget and when I do, it's hard for me to focus in class about the lectures that my professor's are going over. If they don't make them interesting that day then I have a very hard time focusing and concentrating in class. My mind would be all over the place and will be thinking about all sorts of things from my past, in the present, and the future. I would think about softball and my family and friends that I truly miss back home. Also a key factor in my focusing in class and concentrating in class depends on how much energy I have that day. Especially in the beginning of classes when we first started I had 6 ams which killed me on the days I had a lot of classes or had early classes, because those days I wouldn't be able to take a nap before those classes. So I would be so dead when I go to those classes and all I would be thinking about was how much longer do we have in class as I was slowly falling asleep in class which always happened to be the most important lecture days. I also need to stop staying up so late the night before, because if I don't get enough sleep I won't be able to focus the next day in class, because I would be to tired to focus or concentrate and especially if I didn't take my medicine that day I wouldn't be able to get any work done or listen to what the lectures were about that day. I also need to focus on how to let go of what happened in the past. I have a bad habit of letting stuff go, because I like to hold onto things. So if I would learn to let things go and focus on the present and the future that would help me with being less distracted and less stressed out, because it would be less stuff I would be thinking about.