Welcome to Guitar Tricks.. I would suggest going right to the very begining..
Zip thru fundamentals one and two to see what you missed in the past. If you find a lesson that has something you don't understand or can't get a grip on, then you can ask in a forum or to instructor.
You might also skim thru the instructors bio and see who has style, genre, technique you favor.
Most of all your going to hear, "the best way to get better is practice practice practice".. Everyone has their own learning curve, environment and time constraints they need to work around to get the best practice sessions. There are plenty of peeps here that will share their experience in learning guitar.
What will help the most, is to note the instructor and the particular lesson you are having trouble with so that they can find where you are at.
I hope this helps you out..
Gordon
