I am 20 and I already considered myself to be old. I don't think it really matters if others see you as old, as long as you see yourself at the age you want. I plan to continue my education for a very...
study groups also helps a lot. form a small group of maybe 4 to 5 people, more if you want, and test each other out on what you are learning in class. if you don't like groups, you can do flash cards...