Druid epic quest question

[Zarr]

While leveling I forage some things I needed for the epic and killed some things I needed to kill for my epic, but when I read this section I got worried….

Go back to Telin Darkforest, turn into wolf form if necessary, and give him the Coin. He will give it back to you as Worn Dark Metal Coin and tells you to find Althele. She is in East Karana, just north of the barbarian fishing village at -3658, -1593

. Once you start this section, you begin a chain of events, so don't do it until you are ready to finish the job.

Give her the Worn Dark Metal Coin and receive a worn amulet.

Do I need re forage and re kill the things I already killed and forage ? and once you star that section you cant stop ?