Some days are like that..2 steps forward, 5 steps back. Live and learn.
I keep a dry erase board nearby. When I stop to take a break on a project, I write what I will do next when I return.
Post it notes work great to help you remember. You can number them 1 2 3 and so on if keeping color orders straight in rows. Ie. row 1: black yellow white . I put a check mark across the note when the row is complete and put out row 2 post it. This works for me.