Consider what each stat and function do and what they mean. For example, strength indicates your raw muscle power (how hard you hit and how much weight you can lift). Once you know what purpose each one has, you can play around with it however you want.
Do note, though, this is a novel, not a video game. The purpose of a status screen is to help you tell a story. Don't get too geeky about it.
Make it unique is the best advice. Make it stand out from the crowd. You can mix and match different systems from different stories or games you like and create something new. And, just as important as its uniqueness, keep it comprehensible.