[2D]Collider corners problem

Hey,beginner here.

My 2d object is moving on surface of a box collider, but when it enter to another collider’s(clone prefab) surface (sidebyside) it stuck, flies, etc…

I just wanna go directly on collider to another collider’s surface. And idk what to do any help?

GIF here;

159628-whatsapp-video-2020-05-16-at-110-min.gif

CODE HERE

void Update()
{

        if (Input.GetMouseButtonDown(0))
        {
            if (transform.position.x<0)
            {
                rb.velocity = new Vector2(10, 1);
            }
            else
            {
                rb.velocity = new Vector2(-10, 1);
            }
    }