Guitar Practice

This evening I practiced the guitar again while watching the instructional DVD. I'm making progress with the chromatic scale going up. I need more practice going down. I feel like I'm all thumbs. The classical guitar that I have which has nylon strings is easier to learn on. I also have an Acoustical guitar which is larger, but that seems to be harder to learn on. I've watched the DVD about 4x so far. I watched it all the way through the first time, but now I watch just the part I need work on which is the playing the Chromatic scale. When I have that down pat I'll proceed to the chord section on the DVD. After that comes the playing of some easy songs. I figure that I'll be on Vol. 1 for about 6 months to a year at the rate I'm going. If each vol. takes as long to learn, I could be at this for 10 years. Hopefully, I'll get to a point where I have muscle memory and things will start to get easier to learn to play. It's fun, but frustrating. I hope that it doesn't take 10 years, I still have the Harp to learn!