Great things going for guitar -

• just amuse yourself, or share your music with others;
• a great way to shed the stresses and anxieties of life;
• have fun - yourself - family - children - friends;
• express yourself when things are going well, and when things get hard;
• you can use guitar books and DVDs as a shortcut.

How you can improve or learn -

• pick one of the guitar books or DVDs;
• learn just one chord - G C or D7;
• playing the chord as backing, invent a melody to match (not long, just about 8 bars will do (=32 beats) );
• then invent some words. Nonsense will do. Don’t be critical, you’re only laying out the basics;
• write out what you have created.
• do the same with two chords, then three, etc, etc.