Hi guys. I wanna make a door but my door is elastic like rubber. Any ideas?

Simple, you have no connected Rigidbody(clearly shown in your inspector at the right in your video). Read the docs:
I know you have auto-connected selected but try the Rigidbody first. I suspect it’s rotating around the wrong point.
Edit: It’s also possible your anchor settings need to be adjusted. Without knowing your world coordinates it is difficult to tell what they should be but make them closer to the connected anchor and see if that helps.
If i delete Hinge i have the same problem.
Then what is left on your door then when you delete the hinge? It should only move due to collisions then if you remove the hingeJoint. Is there still a script attached to it at that point? If so post your script.
Rb2D, Box coll 2D, Sprite renderer and Transform left on my door.
