Sorry you're feeling sad. It is a hard time of the year for a lot of people, missing loved ones who have passed, and those far away. Cuddle with your daughter, and enjoy her. Not sure how old she is, but as my DH always says "This Too Shall Pass".
I have not suffered from depression, but feel blue at times. I have a little cry and sometimes I feel better. I talk to myself and feel better.
If you feel like you are really depressed make an appointment with your doctor, or visit a clinic. Don't put it off. Serious depression is not something you can snap out of. If it is depression please seek professional help.
Hope you feel better soon.