You know what's great? To buy this car, you had to be at least 18. That makes you an adult, so daddy's opinion on your purchase is completely and totally irrelevant. You made an adult decision, so be an adult and stand by it. Your extended warranty is worthless, and you definitely paid too much for it. Think about it, when is the last time you ever saw a car with a broken Bluetooth? Because you financed for 6 years (on a purchase, NOT a lease), you'll be upside down for at least 48-54 months, so Gap is good, as long as you didn't overpay.
This is a good vehicle, which will last a long time as long as you take care of it. Though you overpaid a little, it wasn't a bad deal at all. Congrats...
In answer to STEPHEN: Toyota Certified vehicles come with a 12 month/12,000 mile comprehensive (bumper to bumper) warranty, a 7 year/100,000 powertrain warranty (from purchase date, so the OP has roughly 5 years/60,000 remaining), as well as 1 year of roadside assistance. If financing through Toyota Financial Services, you also qualify for new vehicle rates (standard rates, not incentive rates.
20 years retail auto sales experience.