You already have most of the skills in place, what you need to is get out and play and start using what you already know and find out how it sits within what you are playing.
I deal from time to time with players such as yourself, you already have musical skill, but just no experience, so get the experience under your belt and you will progress faster and better until you hit 'the wall", which just means you plateau out as your skills, experience and expectations even out.
What i do is teach such players, over one or two lessons, the technique of practice, how to practice what to practice, and then leave then at that. Their music knowledge will take over, what they already know sort of kicks in the more they progress. So it is playing techniques such as fretting, plucking, posture, etc that will be the biggest benefit.
A player like this i may see again is measured in months not weeks as they need to hit the wall in order for me to teach them, if not they are just paying for lessons and information they already know, but may not have realised.
Nothing demotivates faster than the feeling of treading water or going over material and lessons you already know....and paying for it.
My advice find a teacher and have that lesson on getting set up to play, then use many of the great sites available about learning to use techniques, learning songs, etc. Scott Devine is a great site as you should get the theory behind the practical lessons Scott presents......remember get out and play live.
http://www.scottsbasslessons.com
