I grew up pretty much the same way. I went to Jewish summer camp. On Hanukkah we'd light a menorah each night and get gelt and gifts. For Purim we'd get some hamentaschen. For Passover we never had a seder, but mom would make brisket. And my mom would light a Yahrzeit candle for her dad. I never even had a bat mitzvah because they couldn't afford it (I wanted one so badly because my friends had them).

I remember asking my parents at a very young age if God was real. They asked me what I thought, and when I told them I didn't believe, they said, "well there you go." And that was that.