Eight-directional movement with joystick

I managed to find a solution, here's what I ended up with:

         int QuantizeAxis(float input)
         {
             if (input < -0.35f) return -1;
             if (input > 0.35f) return 1;
             return 0;
         }
 
         if (Input.GetAxisRaw("Horizontal") > 0 || Input.GetAxisRaw("Horizontal") < 0)
         {
             float NewX = QuantizeAxis(Input.GetAxisRaw("Horizontal"));
             Direction.x = NewX;
             RB.velocity = new Vector3(NewX * Speed ,RB.velocity.y ,RB.velocity.z);
         }
 
 
         if (Input.GetAxisRaw("Vertical") > 0 || Input.GetAxisRaw("Vertical") < 0)
         {
             float NewY = QuantizeAxis(Input.GetAxisRaw("Vertical"));
             Direction.y = NewY;
             RB.velocity = new Vector3(RB.velocity.x ,RB.velocity.y ,NewY * Speed);
         }