I dont see any wear or bending that isn't supposed to be bent. The cut out box lines are straight with no indication on any wear other than paint worn off . From the scrapped off paint, it looks like the OP might be trying to hook up on unlevel ground because the paint is scuffed off badly on the left side but not on the right.
Try hooking / unhooking on level ground and it will go easier although really not necessary. The way to hookup it to tilt your QA assembly to full dump and maneuver it under to top lip till both sides are fully engaged, then raise the FEL and tilt the bucket back so the weight of the bucket is keeping it engaged against the pins the lower the handles fully to engage the pins and compress the spring.
There is an adjustment to adjust the spring tension. It should be really tight but no so tight that you cant fully depress the lever.
My brother-in-law's New Holland got so loose once that there was no spring tension to hold the pin down. The pin was about 1 thread from falling off, so check that also.