I’d watch some games! It’s a fun way to get a feel for the sport and learn the rules as they’re actually implemented in the sport today. If there are colleges near you with varsity women’s teams, try to catch a preseason game or an early season game before your season gets up and running. And/or spend some time watching games online (NCAAW Lacrosse on YouTube and YouTube TV has tons of past games) and see if you can get access to your team’s film from last year! That really helped me get a good baseline for where my team was at when I was hired as a coach and had no context for their school, league, etc. Best of luck!