Cannot deal anymore

I just cannot wait for the holidays, this is a much needed break for me. It has been such a short and stressful term. The fact that I am working does not help. I have been so tired and all that I want to do is sleep. The fact that after a long day at school, I have to go straight to work. I am so exhausted and all that I want to do is sleep. And whenever I have to come to school early, I struggle to wake up.  
But even after all of this, the greatest reward is when you get paid at the end of the month. That is the greatest but the process getting there is the worst.
I guess that I should be greatful for getting a job and getting a good salary. I guess that I should look at the positives of  this job instead of the negatives. As the saying goes, what does not kill you can only make you stronger.