Hi, I have a quesiton about animation with Adobe Animate

Hi, I would like to ask for your help regarding animation with Adobe Animate. I am learning to create 4-5 frames of animation with it. I have been given a character’s face, previously created in Adobe Animate, with symbolised head, hair, eyes and mouth. I distribute the body parts into a different layer each. Then, I open a new layer in order to create my first animation frame; but when I double clic and resize the hair, that action copies to the previous original frame too! - that was supposed to remain untouched :/. I only want to apply changes to the actual frame I am changing, and I don’t know why this happens. I would be glad if you could help me with this. Thank you all.
Hi, I

This seems more like an Animate question than a Caspar question, but anyways…
A frame could be a Keyframe or an extension of a keyframe (a keyframe holds new content, a new frame shows what’s on the last keyframe)
Just press F5 and F6 and you’ll see for yourself. You might have to select the keyframes for each layer before that.