How to get the actors rotation after the next tick?

I need to find out how I can get the actors current rotation, now it isn’t as simple as just getting the actors rotation node I need to somehow get the actors rotation after the next tick happens so after it has rotated I need to somehow constantly update the rotation. I’m basically trying to lerp the rotation of my character from its current rotation to a target rotation related to the controller direction but I’m not sure how to get the rotation in regards to the controllers input direction. Any ideas? any knowledge?