It hurts when you don't use it

Lesson #1: Talking about writing music is not the same as writing music.
Lesson #2: Composition is like any other musical discipline; it requires constant practice and effort.
Lesson #3: When you're stuck, stop.
Lesson #4: Double counterpoint will get you out of any mess.
Lesson #5: Cannibalization of previous works is so yesterday.

Sometimes I think I should take lessons from myself.