Originally Posted by: JJ777Take something you know. Like you said you learned a minor scale in A minor. Take a tape recorder and record yourself playing a simple 3 chord progression. Record it just playing the same thing over and over and work on improvisation.

No need to create your own backing track (unless you want to as it's own exercise to improve your skills). We've got plenty of them in the Jam Station: http://www.guitartricks.com/jam.php

Also, this suggestion from JJ777 is top notch advice. No reason to put off learning to improvise until later on; the sooner the better. Try these tutorials on learning to improv if you are interested (backing tracks included!):

http://www.guitartricks.com/tutorial.php?input=483
http://www.guitartricks.com/tutorial.php?input=491

Also, I created backing tracks for 12 bar blues in all 12 keys in two different tempos (slow 80BPM; fast 120BPM):
http://www.guitartricks.com/tutorial.php?input=406

Let the improv-soloing begin!