I think the information is all there, and clearly organised, you just have to be patient and read the rules. It's not a particularly different or strange RPG. It's not D&D, if that's your only experience, but it's not a very different style of game, nor a very complex.
If you've gotten to p18 and it's not clear, don't worry, just keep reading. The best way to understand a system is to make a character, and the instructions on p28 are very clear. You just have to take the time to read things, and not expect to understand everything from the start.
That sheet was made by a user of this Discord, where you can ask lots of questions of experienced players, and see more play aids:
https://discord.com/invite/WEUx83PjWm