It seems no matter how hard I work or how much I contribute to my boss. He dismesses all my efforts and call me a loser. I feel like I work hard for nothing. I worked in -17 farenheit weather. I also worked as assistant instructor to teach the basics in fencing for the new students. I don't know what the point is anymore. No recognition, no acknowledement. I am physically and mentally exhausted. I just feel giving up on everything.