Newbie and petrified of towing TT

I never towed before this year either. As a beginner, for me at least, learning how to set up your corner turns so you don't bump over curbs and being able to judge safe braking distances were the most important. As already suggested, getting out to a low traffic parking lot is your best bet. The learning curve from set up to tear down can seem steep, but most are common sense and you'll learn what works best for you they'll quickly become second nature. Try not to get discouraged, that is what insurance is for ;-)