Am I Depressed?

Since 2011 I feel like I am falling into a black hole. I have gone through every problem and crisis that I can think of from my father's sudden death followed by four more deaths in the family to physical, mental, family and financial crises, all of which pushed me to a breaking point.
 
Fuel was added to the fire my boss. She knew I was going through all sorts of problems and I still managed to complete job duties. She threatened to fire me when I took five days off due to my father's death.

I badly need the money and therefore and in spite of tremendous pressure from the office, I am still clinging to the job. All of these problems together are taking a toll on my mental peace. I even thought about committing suicide and only because of my daughter I couldn't do it.

I count my blessings every morning and think about those who are worse of physically and financially than I am. But nothing can lift my mood. I am constantly upset. I don't enjoy anything anymore. My daughter was the brightest point in my life and recently she started demanding more of my time. She clearly expresses that she wants more of my company. I am completely confused and depressed. Am I becoming mentally sick??

Kindly help me out.

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