mouse problem (logitech MK270)

[lolsmurfzs]

uhh, yea, so, in the process of making my midle mouse button (Red circle) get to work again (i had to press really hard to use it), i kind of did the same thing to my left mouse button.....(blue circle)

 

 

the green circle is the small thingy i have to click to click left, right side is fine(picture is upside down :mellow:).

any tips on how to fix this, or do i need a new mouse..