Musical beginnings

Although my music is not very inventive, it is intended to give praise to the wonderful God of Creation, and so I hope He doesn't mind too much.  In about seven (7) places in the book of Psalms in the Bible it does say we should "make a joyful noise", so I'm just following in the footsteps of those who went before.
Theoretically speaking, I am not musically proficient; for example, I can not "sight read" standard music notation, and this has meant that I do not (as a rule) play other people's music.  However, I have been playing the guitar for over 40 years, and so this has meant that I have developed my own form of notation, mostly just with chord diagrams carefully placed over my lyrics, and with other descriptive notes about special treatment for particular passages.
In my teenage years, I remember listening to my sister sing and play guitar in some of the folk-clubs in Adelaide, where I grew up. For my sixteenth or seventeenth birthday, I think, my sister gave me a book of guitar chords (2,400 of them), and I learned how to play a few simple chords like 'C', 'D', 'E', 'F', 'G', 'A-minor', 'B-minor' and 'E-minor'.  Talking to one of the guitarists at one of the folk-clubs where I had gone to watch my sister perform, I was shown how to play a simple lead-run of a few notes in the key of 'E' (probably E-minor), and my love of playing the guitar suddenly took a bright new turn.  It was about that time that I started playing in a band; a few mates and I used to get together in somebody's garage on a Saturday, and we would bash out our own renditions of popular songs, and also we would play some form of our own music - we developed the ability to 'jam' around.  A few years later when I was in the Air Force, and when I was not on duty, I would while away the hours twanging the strings on my guitar.  At various places where I was posted, I would usually find other like-minded souls (people with a desire to play music) and we would get together to play a couple of songs on a Saturday evening.  Gradually my guitar playing was beginning to improve, or at least, it was becoming to sound more the way I wanted it to.  I have no doubt that many people who listen to me play will think that what I play is rubbish, but then it is impossible to please everybody, and perhaps that explains why there are so many different styles of music.  Some people like it loud and heavy, other people prefer a more easy-listening form.  Some people like nothing but classical music, other people prefer jazz.