Insomnia or wildly overactive mind?

 I can't sleep...or should I say that I have trouble sleeping but I fall unconscious eventually. I've had this issue for many years now, so I'm used to it but at the same time I wish I could get into bed and drop off instantaneously. 

I also acknowledge that certain distractions, (such as checking social media, browsing online and even writing this blog), don't help. However it is these distractions that keep my brains infernal questions and criticisms at bay! I can honestly say that once my head hits the pillow each night my brain starts firing questions such as "why did that person not respond?", "have you done enough today?" or "why are wombats called that when they look nothing like bats?". 

Another issue is my own self-criticism, I have a constant internal monologue telling me that I'm a bit rubbish, nothing major just a feeling of inadequacy, which generally speaking is always well-placed, (I hasten to add this isn't a self-pitying thing, if anything it is merely just an observation, I think it's absoloutely fine being self-critical, it avoids being smug or selfish at least.

It's difficult to sleep when all you can think of is a trivial occurrence from years before still haunting you each night! Rest assured that if something I say is taken incorrectly it will be replayed in my head for possibly the rest of my natural life. 

I could probably try sleeping techniques, sleeping aids, etc, but I believe one day all of my years of non-sleeping will accumulate into a Rip Van Winkle-esque scenario where I will sleep for many years and cure me of all of this nonsense.

(Next day note: after I typed this out, I fell asleep, so all's well that ends well)