This isn't a reply for you but for anyone who did get an offer who is reading this and is becoming worried. If you're personally satisfied with rejection then you may not want to read this.
Cambridge tutorials, or supervisions as we call them, aren't actually that bad at all. I'd say asking a question in a supervision is far easier than in a larger class like at school. They're pretty chill and supervisors are normally quite understanding.
Cambridge city centre is a lovely area. It's full of beautiful historic buildings and it's very walkable. Also there is way more green space in the city centre than you'd expect of a city this size.
You can have fun at Cambridge. The idea that it's just study every waking hour is a misconception. I've actually just come from a Bridgemas (Cambridge Christmas) formal. I never feel like I've missed out on the 'uni experience' and a 'Cambridge experience' is something I feel many others do miss out on.
Accommodation is really easy at Cambridge, assuming you're living in college. There is no private landlords to worry about and, as an undergrad, you typically have accommodation guaranteed for three or four years of your degree and sometimes even more. You can switch rooms if you have a good reason to and utilities and even cleaners are all included in your rent which comes as part of your college bill each term. Admittedly the private renting market is not great as far as I've heard but I literally do not know of a single undergrad who rents privately.
You can have a balance between a good social life and academics, it's not all or nothing.