When you think your soil is dry, lift the pot and feel it. Water it slowly but thoroughly. I like to fill a 5 gallon bucket and use a solo cup to water with. Add your water very slowly, a cupful at a time, and give it a few minutes to soak in before adding more. Otherwise it will run right out the bottom before it gets a chance to absorb. Once everything is soaked up, lift the pot and compare the two. A lightweight pot needs more water than a heavy one.
If the top is crusty, it’s probably overloaded with salts. Remove it and add fresh potting mix. If the rootball constantly draws away from the sides and you’re watering daily, you might consider repotting it.