Am I depressed or emotional?

For some reason when adults talk to me and look in my eyes I feel like crying idk why it happens so much. I'm moody most of the time, and it's hard for me to be happy because my dad passed away when I was 12 and he was my everything. My mom swears that I'm not depressed and if I tell her I feel depressed she doesn't do anything. What do you guys think?