There’s a general rule of thumb to deciding whether you’re over watering or under watering your houseplants.  You need to check the leaf of the plant.  If the tip is browning, called tip kill, your plant is over watered.  Let the plant dry out and it should come back.  If the outside edge of the plant is browning, the plant is too dry.  Stick your thumb in it and test the plants’ soil instead of watering on a schedule!  Poke your finger into the soil until about an inch below the surface or up to your first knuckle.  If the soil feels dry to the touch, it’s time to water.  If it’s still damp, wait a day or two and test again.