I've had my Ficus lyrata for about eight months now, and I'm still trying to figure out the watering schedule

I've had my Ficus lyrata for about eight months now, and I'm still trying to figure out the watering schedule. It dropped two leaves last month and I panicked, but it seems to have stabilized since I moved it away from the heating vent. Does anyone else struggle with knowing when it's actually thirsty? I check the soil constantly but I'm worried I'm either overwatering or underwatering. Any tips from folks who've had theirs for longer?