Soil has to be dry before you water again. If its not dry , do not water til it is dry, then you water til runoff.
Finger test, if moist don't water. Lift pot, if its not light , do not water.
Soil should have good drainage. Does pot drain water quickly or slow? May have to add perlite to add for quick draining. Upcan to bigger pot with added perlite...soon as you can.