What type of keyboard do you use? This has a lot to do with your skill and creativity levels dropping.
Make sure you use a non-saturable keyboard. (Make sure it’s certified and labeled as such also. Some unscrupulous manufacturers might claim their keyboards are made of non-saturable materials, but without the label certifying it as such, you have know way of knowing for sure and often, they’re not.)
The reason you need one is that, as time progresses, if your keyboard isn’t specifically created from non-saturable materials, then your writing skill will slowly leak out through your fingertips and spill onto the keyboard by a process of osmosis.
And often, the faster you type, the more creativity and skill gets flung out. A non-saturable keyboard won’t soak it up and so it’ll pool there for you, allowing you to be able to recapture it all later when you’re goofing off crusing the web or performing non-writng related tasks.
(A side-note: Sometimes, if too much creativity and skill is flung off your fingertips and not captured by your keyboard, it can affect objects around your desk. This is often why you wind up with missing objects from around your desk: pencils, notebooks, keys etc.
If they get too much of your creativity/skill on them, they’ll become animated and literally wander off somewhere until it wears off. Then you have to spend valuable time searching for them.)
If you don’t use a special non-saturable keyboard, then after a while, you’ll wind up finding yourself seeming to have less skill than before, and eventually you could even wind up staring at the screen with a bad case of writer’s block! All because you used the wrong type of keyboard!
So be careful. And always use the proper equipment and type wisely. Writing ain't easy.