How to fix/change the axis of an object converted to 3D?

Hello, good morning, I would like this circle to move like a wing, but when making the object in 3D, it does not move on its own axis... how do I change the base?

Below is a video of what is happening:

now this second video is the tutorial i am following, my problem starts at 6:30

https://www.youtube.com/watch?v=MFxpvgC8PaI

Thank you for your attention! ><