With Neverwinter Mod 15, Heart of Fire, the profession system was redone. This guide is currently being updated.
The new profession system in Neverwinter was introduced in Mod 15, the Heart of Fire, and it is quite confusing at first. Follow this guide though and you should be used to it in a few days.
Go to Sargeant Know and get the quest “Workshop Opportunity “
Go to the Workshop and start the introductory quest, you will learn about the different posts in the Workshop and about Artisans and Tools and everything you need to get started. After sending an Adventurer on a gathering task you will have to wait for 15 minutes to continue.