Catching Elephant is a theme by Andy Taylor
I think blaming yourself is always a little futile, but whether or not it’s up to you really depends. I suppose it depends on biochemical factors, so some might have an easy time ‘sleeping on command’ if you will while others find it the hardest thing in the world to do.
One thing is for sure, once you’ve genuinely had enough sleep, and you’re a healthy individual, it’s very difficult to sleep more - your body isn’t very cooperative in that case.