Guitar practicing

Its nine in the evening, and I have just finished practicing my guitar. In April of 2001, I started taking classical guitar lessons, and continued weekly (later double lessons bimonthly) until May of this year when I decided I would take a sabbatical. I had gotten to the point where I really didn’t want to go to my lessons, and I spent the time in between avoiding practicing.
I quit taking lessons, and since then I have practiced much more regularly. Why is that? In the absence of pressure from my instructor, I have only been practicing for my own amusement and betterment, so I have played what I want to rather than boring exercises in books.
Not all exercises in books are boring, but most are. Tonight I mixed some left-hand warm ups from Scott Tennant’s Pumping Nylon with some scale exercises by Dionisio Aguado, a 14th century piece called Dove son quei fieri occhi? and Tears in the rain by Joe Satriani. I know the last one isn’t “classical”, but I like it and it sounds good on my classical guitar.
All told, an hour’s relaxation, leaving a tingle in the fingertips of my left hand and a warm feeling in both hands.
Tonight, I managed to play through Dove with fewer errors than usual. Maybe tomorrow night I’ll play it better still.