Embrace Difficulty: At the outset, any complex task might appear daunting. Overwhelming even. Keep in mind the proverb that a mountain is climbed one step (or handhold) at a time. Chord changes are initially difficult for everyone. No one begins with a beautifully cascading fingerpicking style or a rapid tremolo. These things take practice. With practice, things that once seemed unattainable will become achievements.
Keep a journal. Record dates and make brief notes about improvement and achievements. Use a metronome to measure gains in speed. Occasionally make video recordings of yourself for comparison to past and future performances. Keep track of how many scales you’ve learned, how many songs you’ve memorized, how many chords you know and so forth.
The goal of reaching your first 500 hours of practice is, by itself, a fairly daunting objective. In the room where I do most of my practice, I’ve hung a calendar on the wall where each day write down how much I’ve practiced. I’ve also put a goal thermometer on the wall – a more visual means by which to show the same thing. Measuring in increments of 10 hours, it starts at 0 and goes to 500. Every 10 hours, I color in the space and write a date. Three-hundred 340 hours to go.