Hey sorry if this is too broad or has been discussed too much but I’m new to this subreddit (and also on mobile so obligatory ‘sorry for the format’)

After 2 years of being on a waiting list, I am finally accessing a DBT-based course and have started a course of sertraline. 
The course starts in a few weeks and in preparation the mental health nurse has sent me through a bunch of resources but it just looks like sheets of stock images with phrases like ‘Ears to Listen!’ and the like. 
I’m a bit nervous about what the course is going to be like so I was wondering if anyone had been through anything similar and if anyone has any tips for getting the absolute most out of it?