I've had my Ficus lyrata for about eight months now and it's finally stopped dropping leaves, which feels like a real win

I've had my Ficus lyrata for about eight months now and it's finally stopped dropping leaves, which feels like a real win. I think the key was moving it away from the heating vent—apparently they're fussier about temperature swings than I realized. I'm still not sure if I'm watering it the right amount though. Does anyone else struggle with that? I water when the top inch feels dry, but I'm paranoid I'm either drowning it or letting it get too thirsty.