I listen to my own recordings as a way to learn/improve. Around 1986 my friend had a cassette tape 4 track that we used, and then I did reel-to-reel in college, from 1988-1994 or so- mastered to cassette. None of that stuff survived. Nothing I did that was on cassette still exists. Starting around 2004 I got my own digital 4-track and started putting out MP3s. In 2012 or so I switched to Garageband for iPad. I still have all of this stuff. Now I put a lot of stuff on Soundcloud. Anyhow, the point is- I listen to my old stuff and sometimes I go, "man, that was terrible- I could do way better now. I could have/should have panned/Eq'd/got more volume, tuned my guitar.. etc" This is true even for recordings I was proud of just a few months ago. And then sometimes I'll listen to an even older recording and go "wow! How'd I do THAT!" I had a break in playing- from about 1994-2001 I didn't even own any instruments. I was in the military, and it just seemed like I didn't have room in my life for it. I sold off a Gibson Corvus during that time too, which I am still regretting.