Positive culture comes from being mindful, and respecting your coworkers, and being empathetic.
Balancing family and work is a top priority for me, and I treat it as such. Meaning, I actually put specific family time and events in my calendar so that precious time is dedicated and properly blocked off from any work that may try to sneak its way into my schedule.
Timing, perseverance, and ten years of trying will eventually make you look like an overnight success.