I just listened and I have to say. I wish I could do that, even more at 16! It's amazing! I'm a saxophone and percussion player and tried to learn the guitar, but I was never very good at it. I'm glad I keep it to the pros (or nearly) such as you!
I hope you feel better soon and feel free to talk about it! Have a great day
Regards!
RE: A cool melodic metal guitar riff I wrote when I was 16.