yes, as everyone here says, take it easy, make sure your job is "only" a job, and learn to say no ... at least, learn to say "later - right now i've got higher priorities"
and another important thing is, to speak, communicate, let other people know you already have a lot to do, that you're not claiming for longer deadlines because you're lazy, and, show the amount of work done - if "they" are aware of how much work you have to do, "they"'ll tend to ask less (or for later ...)
but, as pivan says, you'd better get used to this !!! i sometimes had been given work that was due ... the day before ! (but i don't know how to meditate !!)