Seek out Brandhardt, the Magus trainer in Andar.
You have done well, Magus, but there is still much you can learn.
Go and seek out Magus Brandhardt in the town of Andar. He can teach you new abilities that will help you in your journey.
As you advance, you will also find you have gained the potential for new abilities and new actions. You can return to trainers like myself for guidance in gaining new actions.
However, I think you will find experience to be the greatest trainer.