Hi I’m LdnLady

I’m LdnLady,
I signed up because somebody directed me here when I was looking to replace a few pieces of wood inside my campervan.
I’m on a budget so was looking for some help as to how to replace the Mdf boards with wood & cut a panel for the back cupboard.
I’m not a woodworker myself and have no clue as to how this would be cut.
Was wondering if anyone could help out