Practice at least 20 minutes 6 days a week. Consistent practice will allow you to improve your guitar playing skills over a short period. Taking long breaks and not staying dedicated will wear away your muscle memory and delay the development of your skills. Instead, dedicate 20 minutes to an hour of practice throughout most of the week. During practice, you can either run different drills or you can try covering a song.
I would especially like to stress the gentle approach Justin takes with two key aspects that contributed to my development as a musician - music theory and ear training. Justin has succeeded in conveying the importance and profoundness of understanding music both theoretically and through your ears while maintaining a simple and accessible approach to them, all while sticking to what is ultimately the most important motto: 'If it sounds good, it is good'.
The above diagram may look confusing... fear not, it's one of the most common methods of explaining notes on the guitar and is actually quite easy to read. The above represents the neck of the guitar when looked at head on. The first vertical line on the left of the diagram is the sixth string. The line to the right of that is the fifth string. And so on. The horizontal lines in the diagram represent the frets on the guitar... the space between the top horizontal line, and the one below it is the first fret. The space between that second horizontal line from the top and the one below it is the second fret. And so on. The "0" above the diagram represents the open string for the string it is positioned above. Finally, the black dots are indicators that these notes should be played.
If you’re the type of parent who believes music can improve early childhood development, science has good news for you. A recent study suggests that guitar practice can help children better and faster process music and verbal language. Hearing different pitches and tones can help one better parse spoken words. So while every parent should remain careful not to forcefully involve their little ones in music, sports, and other interests, parents can still take a gentler approach that stimulates joy and curiosity, and plant a seed for lifelong learning.