If you are familiar/comfortable with the major/minor chords then I would recommend moving on to inversions. I'm sure the chords that you know are mostly in root position; if you are playing a B Major chord, the B note is the first note of your chord (B - D# - F#). Try playing your chords with the 3rd or 5th as the first note. IE (D# - F# - B) or (F# - B - D#) A good example of this can be found here: http://www.jamplay.com/guitar-chords/b-major-guitar-chord.html - Learn this for all the chords.
A good book that will teach you how to learn all these chords is Mel Bay book called "Jazz Guitar Method Volume two by Ronny Lee." It will not only teach you the inversion for major/minor but 6th, major/minor 7th, dim and so on.
Another thing you should work on is your major/minor scales. Learn how to play them from any part of the fretboard. Record some of your chord progressions you know and start making up solos over them. It will be awkward at first but will get easier with practice.

Almost forgot. Check out the chord progression primer at the guitar suite. I great resource for learning the chords within a particular key.

By all means continue to work on your technique (I agree that recording yourself is a great help here), but remember that technique is a means to an end, not an end in itself.

Try to become a more versatile musician. If you don't sing, try it. If you don't play with other musicians, try that. If there is a local open mic, try playing it. Learn songs especially in genres that you wouldn't normally play,. If you are not comfortable improvising, put on a CD and improvise a guitar part along with it.

learn the minor pentatonic scale in all positions and you'll rock on forever...that's the blues sale and it's the key to wonderland