I've had my Spathiphyllum wallisii for about six months now, and I'm still figuring out its moods

I've had my Spathiphyllum wallisii for about six months now, and I'm still figuring out its moods! It droops dramatically when it's thirsty, which is helpful, but I keep second-guessing myself on watering frequency. The leaves are getting these brown tips lately and I'm wondering if it's low humidity or mineral buildup in my tap water? I mist it occasionally but maybe I need to be more consistent. Anyone else struggle with peace lilies, or am I just overthinking this?