Don't use up so much energy being a critic. Relax, and enjoy things. No one thinks you are "un-cool", if you just observe, and keep your opinion to yourself (unless asked).
"Crap is just a part of life. Life is about us dealing with the crap and remembering that the crap has to be equalled out by extrodinary moments. Without crap we wouldn't know what extrodinary moments felt like, they would just be normal."