Just start writing the parser/compiler/interpreter for your language, today. You will quickly learn what you need, tokenizer/lexer, some way to represent the A

Just start writing the parser/compiler/interpreter for your language, today. You will quickly learn what you need, tokenizer/lexer, some way to represent the AST, how to represent types (if you have any), etc. Later start looking at the literature to see how "its really done". I find this approach takes more time perhaps but I have a much better appreciation for what I am reading afterwards (Oh that's why they did X!).