Nobody "never gets mad", they just deal. But your issue speaks to something bubbling underneath the surface, it sounds like (obligatory caveat: I am nowhere near a professional). Figure that shit out bc it's not going away.:-(

Maybe you are worried about your job or partner or something, and this little stupid stuff is just how it comes out, bc you won't allow yourself to be mad about the REAL reason you are currently unhappy. It definitely sounds like it is yourself that you are mad about... but even that could be a smokescreen or like projection or some such, if it were not okay to be mad at someone/something else.

Therapy could help if you could afford it - even just the time bc there are like volunteer orgs that lower the cost - but you can also do a lot on your own, like try to create a safe space where it is okay to be mad about whatever, even if it seems "wrong". Stupid dog tracking stupid dirt on the stupid carpet... why can't I ever do anything right? (Like: I could not even marry someone who I don't highly suspect is cheating on me... WTF!? Or maybe not that, maybe it's a midlife crisis with career, or children, or who knows what else). Eventually your brain will allow you to know what is REALLY bothering you, when telling you that fact will cause a lesser amount of pain than doing so right now would.

IMHO, start with: you are not okay, this is not normal, and things can get much better (REALLY!), but it will take effort and possibly time (depending on how deeply ingrained whatever it is turns out to be).