After a couple of years , you will have a blown-up (laminated) (3 of them) wiring diagram close to you at all time and you will be able to put on a clinic about EVERY portion of this wiring system that could go on for 60 mins straight and you will speak w/confidence .
W/that being said , jump in , the water's fine . Don't pay any attention to the jellyfish , sharks , squid or any other sea monsters !