Hello Taylor, great to have you join us here in what I call “The Fellowship of Composers”! 
Interesting that you like dark, tense scores, as the monthly composer challenge of November is on this very theme, perhaps you will find the time to join?
Here is the link to the contest post
Haha, loved your ending…I know what you mean, because I go around humming musical ideas and riffs everywhere! 
Sincerely
Mikael “Mike” Baggström
Founder of Professional Composers