If the sticks are still in there, LOSE them. If you can find them, dig them out.
The rocks, if they are only on the surface, are fine.
Teh soil is also fine. It may be holding too much moisture though. Did you add perlite?
Also you are going to need a proper feeding schedule. Lay off the superthrive, it's great stuff but easy to overdo. Give a feeding with a complete fertilizer. Tehn let the soil get drier than I think you have been letting it get. Not BONE dry but so the pot feels light.