Conflicted about baby’s birthday

I’m a first time mom, and our baby came a few days early and ended up being born on the same day of the year my dad passed away. He passed 7 years ago, but that day has always been tough for me. Part of me is still so sad about that day, but I really don’t want to be sad on my daughter’s birthday! It’s somehow the best day of the year, and the worst day of the year at the same time. Maybe I should be grateful that she has given that day a new meaning?? I don’t even know how to feel.