Hey!! congrats there!
that happens, maybe you've been overworking yourself before on other stuff and when you're free just wanna rest and be lazy, or is just lack of discipline, If you haven't developed as kiddo as an adult you'll have strugles, My advice is to follow some tutorials :DD here some really good ones to follow along
Man, your notes are pretty much cleaner than mine, anatomy can be a pain in the buttocks from time to time
Toriyama's style is nice, but if you're all about studying facial expressions I know Scott McCloud deals with them on his book "Making Comics" and Faigins have a complete guide on the subject, Message me if you'd like to have those texts on PDF.