Weekend

Is it really? Does the week ever end?
If you work Saturdays, you know what I mean and if you have hospitalized animals forget about Sundays too!
Don't get me wrong I love my job but as I said, it gets lonely.
You come in weekends, holidays, mornings, nights...you want to make sure everyone is ok, that they're eating, drinking, pooping and peeing...give them all their medications, make sure that they're not depressed from being in a strange environment...
Sometimes I wish I didn't care as much, but how can you help it when you have defenseless creatures depending on you? Owners that see their pets as family members just wanting them back home healthy, safe and sound? You can't help but feel for them too...
But where does my life come into this? Time with my friends? Partner? I always get home too tired for anything...
What am I doing wrong? Am I doing anything wrong or does it just come with the job? Am I the only one feeling this way?