Need help with my modeling become flat...

Support Modeling
1

Greetings！

I am new in Blender and I just learnt for a month as I have a 3D modeling subject.

There’s many problem that I have facing and my lecturer told me our assignment is to modeling a head.
So…there’s an error that I have accidentally make… It begins when I undo, I accidentally click some buttons as I don’t what I had click and it turn out compressed together…
I open the previous one that I have save and still end up like this…it so stressed to redo a new one and I wish someone could help me turn back to normal form…
Pls…I need some help! thank you for your kindness and patient!:frowning:

KdHqxDQ.jpg1366×768 313 KB

Original

VGRtw00.jpg2300×1298 788 KB

2

I don’t know any way to fix that flattened mesh to original if you cannot undo the operation that made it flat.

3

Might have reseted unapplied object scale (alt+S) instead of applying it (ctrl+A -> scale) but who knows. Perhaps try recovering to a state it was still ok

4

Thank you!!! it’s working！You’re my lifesaver :o