take the scale you need to learn, and practice it to a metronome, up the scale, down the scale...
Then try another position of this scale, do the same thing
When you know those two position, try playing licks using both (sliding from one position to another) there are lots of different ways of learning scales, that's one of them...
You should start with the pentatonic minor scale, since it is theone that's used the most in our music...