You've proven yourself against your rival, but your real training has only just begun.
Some of your targets will be much harder to find, even with the magical powers of your Seeker Stone. To give you a better chance of finding them, you can super-charge your stone with Superior Energy. It's rare stuff, but well worth the price.
Your mission now is to seek out my esteemed Drill Instructor who is hiding in the village. She's a master of camouflage and will use every trick to try and evade you. Using Superior Energy will definitely make your task easier.
She's carrying small flags that you will have to take from her. Bring three of them back to me, and we'll continue your training.