The character sheet really is the user interface for a role-playing game. So let's get to know the Basic / Expert character sheet from 1980s D&D by rolling up a character.
Rules Cyclopedia: https://www.drivethrurpg.com/en/product/17171/d-d-rules-cyclopedia-basic
Old School Armory: https://www.drivethrurpg.com/en/product/396480/old-school-armory
Table Fables: https://www.amazon.com/Table-Fables-collection-tables-master/dp/1542678595
Monomakes dice: https://www.etsy.com/shop/monomakesCraft