Good job! Set a minimum schedule... say twice a week to weekly... remember about changes happening fast...( a water change is stressful too, so if you find you must to a large change, then I will sometimes do half the amount, refill and then do the other half change. Diluting water lol)
Be ready to compensate for bad numbers with an extra water change or two... retest and record. I have a little calender book to record every thing.
So you will be watching for your Ammonia to rise, (water change to dilute), then you will see the nitrITe number climb, possibly only slightly, (water change if it rises too high... then both of those will level off/drop and you will see NitrAte levels climb. You are watching for about 20 ppm on NitrAtes and if it goes higher then again Water Changes to Diliute... but when this process is done you will have the bio load / bacteria you need to process the output from the current load of fish you have. As you add more fish, you must slowly grow more bacteria to compensate. Likewise if several fish die off or are removed, some good bacteria will die off as they are no longer getting enough food.
It is a fine balance. (That's why people with big tanks bring home 8-10 new fish and some will die)
(It's a very quiet chat room, often empty so you have to just go in and wait for someone to show up sometimes)