People who say "dogs don't smile" or look at me funny when I mention my dog smiling sadly haven't had the honor of being around well loved, happy doggies...seriously LOKATAR!! (well maybe it's not a "her" but had to say it lol) Doggie smiles are the sweetest most sincere and just the BEST also super contagious!
Detach from the things that bother you so much... you nearly slip into your less than your best self. Don't get caught up in the negative. Deep breath. Don't let stuff bother you. Don't let it in. You're happier than you've ever been. Walk away from anything that tries to take that away. Grace and dignity. Maintain that mindset.