If these plants came from a conventional garlic seed pod for sure, they're garlic. The curly bits that emerge with "tear drops" you see are actually called garlic scapes and...
Take the controller to the hardware store and show it to an employee there. They can show you which screwdriver you need to buy. Your only other option is to...
No, the barcode is for retailer use only. Contact Microsoft and give them the card information (typically the barcode number above the barcode and/or the remaining 12 letters).
The next safest surface would be a room with carpeted flooring. That way if you fall it won't hurt as much. Place pillows around you to soften any falls.