It is important to not focus on your own depression, but rather to notice that others are in pain too. Try to heal others, then you will notice that others have equal or worse situations in their lives. Always seek the universal love that is out there and seek to give it to someone else. There are and always be evil forces out there trying to bring you and the rest of the world down. The question is, will you do right by your father and demand of yourself the spiritual reserves to combat those forces. Smile right now! Smile deep in your heart and know that you are strong and loving and giving and can give something to the world. The difference depends on your focus. Only you can decide on what you will focus on. Go into the emptyness in as close a lotus position as you can, feel the pain and go through it. This will give you the strength and confidence to get through the rest of your day.
Peace and Blessings to you
Joel