Help!

I know this is really horrible, but I am losing my mind.

I am already on my third cup of coffee and it's not even 11am.
I woke up late because I was writing more.

And I nearly killed one of my characters! (the lover of the main character)

This is not like peaceful die-in-your-sleep kill, the main character is poisoned and she is suffering because her (literally) morbid sister caught the companion of the character and a support and the sister nearly murdered them with the exact same blade that she used on the main character.

I won't say anymore now but after I wrote this, I was thinking that I've absolutely lost my mind. 

Plus every time I keep hearing that music I like, I'm getting more and more ideas but I cannot write them down because I am driving or doing something that take me away from it...

I try to keep up with it but it is is sometimes overwhelming...