"From one thing, know then thousand things." - Samurai Maxim

When learning a musical instrument, I believe every player will reach a point where they feel overwhelmed at everything that can be learned on the instrument (i.e. scales, chords, progressions, techniques, songs, etc). I've been there myself.

While brainstorming  topics to cover for an upcoming workshop, I challenged myself to play a simply major scale, as a technical study, in as many different ways as possible before I stumped myself. Guess what, I didn't stump myself (granted - my wife told me to "put down that guitar, we have to go" about 15 minutes into the exercise). Here was a scale that i've played thousands of times over the years and I was discovering new ways to approach it.

And you know what, later that evening, when I was improvising over a major chord progression, that scale sounded fresh to me. Not so much the notes, but in the way I was playing the notes (all from the 15 minute drill earlier in the day).

Take some time in the near future and pick something to work on that you feel very comfortable with; a chord, a scale, a song, whatever. Try to play it in ways you've never played it before. Learn from that, apply it to your other material. In the end, you'll be a better player for it.