Learning any musical instrument is not an easy job, and it proves completely true in the case of playing guitar. Practising guitar sometimes doesn’t show enough to reach where you want to. So, you start finding new resources for your practice to get improvement in your progress. But, sometimes, even after trying so many techniques and methods of Practising, you find a slow or negligible progress in your playing. You are bound to make mistakes even when you are attending sessions/lessons at a guitar school.