Dealing with Adult A.D.D. is more than just taking medication and "forcing" focus. You have to use your working memory or supplements to it, like a note-pad, to coach yourself about what is the best use of your time. You obviously know that none of these other things is helping get actual project work done.

One thing that has been very helpful for me is counseling. (Also called therapy). A psychiatrist will prescribe medication, but a psychologist will help you become aware and devise strategies for dealing with behaviors you've described that prevent you from accomplishing meaningful work.

Two books I found immensely helpful are:

Taking Charge of Adult ADHD

By: Russell A. Barkley

and

Is It You, Me, or Adult A.D.D.? Stopping the Roller Coaster When Someone You Love Has Attention Deficit Disorder

By: Gina Pera, Russell Barkley

Good luck