Making Memories
I was watching a youtube video about a man that owned a kissaten for 50 years in Okayama.
A sentence the owner said struck me as I've felt that some times in my life:
I have a feeling that humans can't make memories without some level of comfort or ease within their mind
When you're not with a calm mind, it becomes very difficult to create new memories, which also translates into inability to study, memorize, or concentrate.
Calm your mind, "clean the kitchen" as well as you can and you'll notice the difference. Start by trying to sleep better!