Unknowingly you are stressing out, not good for your emotional well-being and overall health.

I don't know if it works for you, but it worked for me every time. If there are ppl at your workplace quite obnoxious, it's better to assume they simply don't exist for you. You gotta do what you gotta do, rather than having thoughts of others and letting them occupy your mind all time. I've developed that particular trait on me that I can instantly dissolve their existence in my mind and then all I see is things I needed to accomplish. In another words, it's called 'giving a rat's arse'. Don't compete with them, you just do your things and you'll eventually excel. You don't even need to bring someone down.