An easy way to water is to put her in the shower once a week. A few minutes under lukewarm water (not hot) and she’ll be thrilled. Let the excess drain off.
Peace lily easy when it comes to light, managing in most conditions, though she’ll flower more in a brighter spot.
Peace lily is pretty tough and will usually bounce back from a missed watering. Water her when the top inch of soil feels dry.
Organic fertilizing once in three months recommended.