Amnesia physics Grab

Hi guys, I’m new in Unreal Engine and I’m trying to make Amnesia physics - grab, throw, move objects but I have absolute no idea what I’m doing (I’m programming for the first time) can someone help me fix the thing that is going on in this video and explain it to me a little maybe.

And I want to create physics like this: https://www.youtube.com/watch?v=2ve0eVwjv5k