For me, the trick is to always use 10% of the pot's capacity for watering, a maximum of 20% (it mainly depends on the temperature in your city, among other things), and to test it out, so that there are about 3 days between waterings (two waterings a week).
Cheers, hope it helps.
I reaffirm what my buddy said, no transplants for autos, always direct sow in the final pot.
Cheers