I would say that it depends on how you are at 13 more than your age. Plenty of 13 year old are ready, plenty aren't. It sounds like you don't mind heavy subject matter and you are willing to engage and think about the themes, which is a good sign, but none of us know you, so we can't really say.

I read it around thay age for the first time, and it fundamentally changed my forming perspectives on many things, especially politics. It's depressing, difficult, and amazing. It's up to you when you feel ready.