If it's just a bulb, I can help you if out, but if it's more than that take the others advice and visit an independent shop.
They're very helpful. And depending on the vehicle they could help you install it. They do wiper blades and other stuff. Give them a call.
O'Reilly's is only a parts store, not a mechanic shop. They can only sell you parts, not do the work to replace it. You're best off finding a local mechanic shop for something like this
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