Chosen Solution

I had my psp go in my pocket and a small plastic piece that held the switch in place broke off and many my psp won’t turn on anymore.

Yeah, it can be replaced. iFixit has several guides and repair manuals that you can use, located here: PSP Go Repair And a parts store, located here: http://www.ifixit.com/Game-Console-Parts… For anything you might need to replace. Best of luck.