There are different ways to water plants in soil. Some people alternate nutes and plain water, some nute every time and flush periodically. I don't grow in soil so I nute every time but I don't know if that's the best for you. You are going to have to experiment a bit and find out what works or hopefully a soil grower will come along and tell you what's best. If you start to see any brown or rusty colored spots on the leaves then you have too much nute in the soil and should go back to plain water. If they become dull green or yellow like they were before than you need more nute.
But your plant looks 1000% better. It should start to grow really fast now.