i would to set the pivot point to the center point , to make this object rotate around itself , how i can do that ??
Make an empty gameobject and add your object as a child of empty gameobject. Then change your child position too fit its center with its parent pivot, then rotate parent object.
Or, you can try to modify your sprite’s center pivot point in the Sprite Editor.
-Click on the selected sprite in the Asset folder,
-and on the right side window, click on sprite editor.
-You will then see a blue circle somewhere on your sprite.
-Drag it to the center point of your sprite, manually if needed,
-then hit apply button at the top of the Sprite Editor window.