looking at the tutorial (I'm assuming you mean this one: https://sheepolution.com/learn/book/contents ) you don't need to memorise everything that's there in order to make a game. I would say that if you read until chapter 8 (and check out chapter 11) you have all the basic tools to start making sma...

Hey, I'm currently developing a tool to reproduce glitches and bugs in games made with LÖVE by using genetic algorithms to generate input sequences. Currently I'm searching for bugs or glitches that developers and testers have been unable to reproduce in order to test the effectiveness of the tool. ...