Did I damage my car by forgetting the emergency brake was on while backing up?

Yesterday I was backing out of a parking spot that was in a slight inclune. The car backed up a bit but there was a car coming so I stopped. Once the car passed I continued to step on the gas to reverse but the car wouldn't move. I took my foot off and pushed it again. Maybe did this two more times before I realized my emergency brake was on. My question is did I damage anything by doing this? I have an automatic transmission and the car is a 08 Honda Civic hybrid.

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