Depending on what you’re trying to achieve, you probably shouldn’t set the angular velocity directly but apply a angular force or impulse
Regarding your control issues, it’s because of the default pawn and player controller. It took me a while to work out what does what and how to do it, it’s not too bad but I think the tutorials gloss over it a bit and the examples aren’t exactly helpful unfortanately.
Try making your game as a blank project instead of starting as a 3rd person or whatever, and DON"T include starter content.
That way you have to make everything from scratch so you kinda have to learn how to do it all and in the end you end up understanding all aspects of control and camera control etc.
IMO