I just graduated from college and got diagnosed with ADD right after. I had lots of inattention issues and school has always been a struggle. However, I did very well in college and I'm now trying to get into medical school. Tips that worked well for me before I was diagnosed included keeping a tight schedule and writing everything down! Keep a weekly planner with you every day, on top of having a calendar or a bulletin/dry-erase board in your room so you can remember things and stay organized. Keeping physically active helped regulate me a little bit too. Go to your teacher's office hours, tutoring, whatever you need to do...every little bit helps. As for remedies...ha, I've tried them all. Ginko biloba, DMAE, focus factor, none could help me. I know you want to avoid taking meds as much as possible, but from someone who has been there....let me just say it can open up a new world for you. To be able to actually complete tasks and focus for the first time is wonderful and you might be pleasantly surprised. Nothing big, try taking a small dose once a day. Adderall works best for me, but finding the right med is really experimenting b/c everyone is affected differently. Hope this helped!