I was a public school music teacher for many years, and for the lower grades either accompanied with a guitar or taught them to accompany themselves. At any rate, there was no pressure from 1-5 grade students to ever further develop my guitar skills. If I ever found reason to improve my guitar playing, I would just improve, after all, I had a degree in music and should know what to do. Wrong! This construction, being able to see what to do next and doing it, is absolutely helping. The lessons are showing me misconceptions and locked minded notions I have carried for years about the guitar; the more strings used to make a chord the better; I IV and V chords are vertical arrangements, and strumming patterns that I would not have considered. As for a timed practice habit, at 80 years I'm still quite busy and my schedule is irregular. I just want to get the session in before the day is over. Thank you for the instruction, I enjoy it and am glad to see personal improvement.