Stick your finger in about 2 inches and if its dry then water.
Try not to stick to a schedule only water when needed. If you over water the leaves will droop down if this happens dont water again until it looks healthier
spraying the soil with a mist is good... i spray the soil every 12 hours... but i only spray enough that it dampens, no soak, the top of the soil and by the time its ready to spray again... the soil is dry