Hey!
‘bActive’ is the bool. You should disable tick on this actor while you deactivated it (like ‘SetComponentTickEnabled(false);’). I’m not 100% sure, but i think there is a toggle-function for all this (like the ‘ToggleVisibility()’-function).
When you have another question, let us know it! 
Sincerely
EDIT: i’m also pretty new to UE4 (and come from Unity like you) so i don’t give a assurance for my answer. ^^