Welcome PB!
The coolest thing about being here is that regardless of where you start, you can't lose. Jump in the course that speaks to your heart and then free yourself to browse and poke your nose into other cool stuff.
As you go through the course you'll get a good feel for "should I stay here or check out something else"? This is why you can't lose. You can sample and taste around the courses before settling solidly into one course.
Freedom is a good thing.
You're going to like it here.