Do I have depression?

Have you ever experienced sleepless nights?
More than once, I've stared blankly at the ceiling fan spinning endlessly, unable to fall asleep.
"Relationships,"
"family,"
"career"
—I feel like I can't handle anything right. I almost lost my job, and my family thinks I'm doing great and keeps pressuring me to get married. Life has worn me down to the bone; how can I possibly be in a relationship?
The other day, someone asked: What's the meaning of life?
If it's not for family, partner, and children, what do you really have left?
Thinking about it, we're really just like animals—living to reproduce.
God gave humankind thought, and complicated everything simple.
Don't you agree?