I'm an engineering major and the amount of work can be overwhelming sometimes. So to help me deal, ive been buying ritalin from a friend to keep me extremely focused and running like a machine to get my work done. Its gotten to a point where i hate/cant study without it. I know I dont have ADD, but the feeling I get from being on ritalin just feels so good, like i can do everything. I want to stop using it but keep the feeling of being on it. I was considering trying hypnosis but had bad luck with it in the past. Anyone have any suggestions of how I can accomplish this goal without using drugs?