Work is work. Its a blessing if you are happy with your work. But at the end of the day you have to draw the line and have a mindset to treat it "just a job", just a means to earn and fuel the things that makes you truly happy.
You are finite but you are enough. You are loved even if it means loving yourself. Its not an easy life and its ok to cry. Continue to live, a day at time. The laughter and the smiles will eventually come.