How can i get a high level of focus and productivity on a daily basis without the aid of a potentially addictive drug?

See answer: Sessions with a good certified therapist may help, having a good support structure at home and work-with family, colleagues and friends will help. Keep your mind sharp by reading the paper, doing crossword puzzles. Finally, some people with add/adhd may need medication, and there are some medications that are not definatively addicting. There are excellent psychiatrists and gen drs that can help.