This right here is the way. 
Your plants are looking great! You’ve already accomplished what allot of beginners have difficulty with, and that’s just getting them started. I agree with the less is more idea. Definately don’t get to complicated and ease into it. Good luck!!
Also watch the heavy watering, you’d be shocked at how long those little plants can go without adding more. In fact it’s really good to test that early on. 
Also Please feel free to visit my thread as I mess around with micro organisms/ organics and learning as I go.
If you need any seeds to practice with lemme know. 