I found the first 3 months to be the most frustrating time, but kept on practicing, and then one day it just clicked. But the word is practice. I was told 'do at least 15 minutes, 20 if you can stand it, every day would help'. So I did just that, and now I pick up the guitar every day and suddenly find an hours disappeared. The first few months are critical, just don't give up through frustration and you'll make the breakthrough