Learn the basic chords,e a g f d c and b,which is basically a power chord.choose a few songs that you like and try and work out the chords involved first or even look it up on t'internet.learn tab rather than music as it'll make more sense to technical minded types!!! To be honest with a guitar it's practice practice practice,you'll just get to one day and think"hmm,I'm finally getting this!!!".lessons are great but not cheap and you may even struggle to find anyone to teach you as their very popular with the kids as well.but believe me,it's a great hobby!!