hey there slam the best way for u to practice it is to get ur self a metronome and start off very slowy then increase the tempo only when ur comfortable with the technique u are practicing.. but u need to start slow and build up gradually paying attention the every note make sure it sounds clear its how i practice...and for sweet child of mine intro use alternate picking its a good string skipping ex too.. so for the first note its a down stroke (v) then the second is up (^)and so on.. i couldnt practice without me metronome..