How do i make to a collider match the image size on Unity 2D Game?

Question

I'm trying to make my game to work on every device screen, i'm using images to be able to scale my game for every screen size.. When i use a collider on my image and when the screen size changes, the collider doesn't follow the image size correctly, how do i do to make it work? My game is 2D, i tried everything to make the game to scale with all screen sizes but only setting anchors right using images worked, sprites doesn't match the screen size correctly