Hi Togonaaa,
there are a lots of videos and documents for Artificial Intelligence, I’am going to share a few with you and hope that you can learn what you need or at least give you the tools to continue:
UNREAL DOCUMENTATION
- Artificial Intelligence | Unreal Engine 4.27 Documentation
- Behavior Trees | Unreal Engine 4.27 Documentation
- Environment Query System | Unreal Engine 4.27 Documentation
- AI Perception | Unreal Engine 4.27 Documentation
- AI Debugging | Unreal Engine 4.27 Documentation
UNREAL YOUTUBE CHANNEL
Unreal Engine AI Tutorial: Create AI with Behavior Trees - Tom Looman
Unreal Engine 4 AI Tutorial - Ryan Laley
Hope you will find all of this useful and have fun learning!