ghost -
here's what I'm doing, maybe it will help you stay interested. Nobody and I mean NOBODY wants to sit and do scales all day long for hours on end... I didn't start playing with that intention and I don't intend to. A close friend turned me on to a great book. "Blues you can use"
The idea behind the book is that it starts you slowly and walks you thru lessons that teach chords and scales and then at the end of a lesson is a passage that you play using the techniques that you've learned in the lesson. it says to take a week on each lesson and definetly PLAY IT SLOWLY!!! if you practice sloppily, you'll only be able to play - sloppily! duh! But i've found that a good 20-30 minutes doing the excercises and chords and the next 1/2 hour playing the passage every night gets me in a good habit of practicing and then I take as much time as I want to play what I want. Don't let yourself get in a rut or you'll never progress and you'll wind up bored with a guitar coverd in dust or worse.. be a one lick hero!

sorry for the long winded response =)