Wants to punch, and pull my hair out...

What do I get for coming into work, doing my job, and keeping my mouth shut? Everything! i must say it's the cherry on top to be getting complaints about me "taking too many vacations". Which is absolutely ridiculous! I mean I don't have the title of being full time staff; I have all right to take a vacation every once and a awhile. If i tell my boss I'm taking it off before hand, than I'm doing the job right... right?