Diet pills that really work?

I've been trying many different diet pills in the market from cheap to expensive products but unfortunately, they never give me the result i wanted. Like seriously, is there any diet pills that really work? I'm tired of reading reviews online or even tired of reading the product labels in the store because for me, almost all of them are just the same. There are probably effective diet pills out there but since i can't prove it myself, my conclusion is still unchanged. If anybody have any suggestion, please don't hesitate to comment.