Calling Experienced IDs: What do you wish you learned in school?

Hi all:

I'm new to this subreddit but not to the field, and I wanted to pose the question to a group.

For those who have experience in the field, what is something you wish you had learned about instructional design or got to practice while you were in school?

And I know a lot of folks end up in instructional design by accident, but there are more undergrad and grad programs dedicated to teaching folks about this field, more so now than ever before. So this applies to folks who have degrees in instructional design in adjacent fields as well (education, etc.) or took one or two classes about it.

I have an opportunity to make some revisions to the course I teach in the same subject. I'm big on mixing theoretical with the practical application and practice you need to succeed on the field, so anything that aligns with that spirit is appreciated.