These are so overdone. Do you actually walk around in real life thinking, I must make a mental note about that? Okay, maybe you do. But when book characters do it, it's just annoying. Can't they just think whatever it is without conjuring up an image of a tiny person inside their brain with a paper and pencil?
Mental kicks and punches are even worse. What part of the brain is getting punched? Are there hands and feet inside there?
This is so common it's hard to pick up a novel without finding a mental note inside it. Please don't do it, I'm begging you. Your character might get hurt.