My trigger is broken and it’s loose

It looks like the tension spring or the bar it sits on is damaged, misaligned, or has launched itself completely out of the controller altogether. Did this problem occur after you opened the controller up for another reason or did it start on it’s own without ever opening the controller first?

I would check to see if that spring/bar is in fact present and correctly aligned. That seems to be your issue.

While I am sure there are many places to buy a replacement spring/bar, here is one place you can buy it if you do need to replace it: https://www.dhgate.com/product/lt-rt-but...