Matt - if you can't fit in private study around less than 3 1/2 hrs a day average timetabled time your not really interested in doing private study.
You are gettin 3 1/2 weeks off at Xmas - yes this may be 1/2 week less than other unis but the reason for this is so that the January exams aren't all packed in to 1 week (surely you'd agree that is a good thing). You do not need more than 3 weeks off at Easter given that there are 2 weeks after Easter which are still teaching periods (or in reality revision lectures) so you can start revising at Easter and then go back and seek help if needed from tutors and lecturers.
Then comes the really good part - you break up for summer a lot earlier than virtually every other uni in the country. So more time to relax or in most students' cases earn some money to cover the debt of uni.
Personally, I struggle to see where your problem is.