bought your turkey too late?
5 hrs/lb is a minimum for thawing a turkey in the fridge. If you are cooking for this Sunday, Thursday would probably be the absolute latest for thawing.
30mins / lb is a minimum for thawing by submerging in cold water. Replace the water every 30 mins. It'll take about 8hours on average with this method
I thawed a turkey in a large cooler overnight and it was ready to go in the morning. Just break off the ice that forms around the turkey every now and then. I like to thaw overnight once I get the turkey in a large cooler, then finish thawing the turkey in the fridge for a couple more days to get fully thawed out.