£9000 is just for the fees, and living costs have to be paid for on top of that.
Outside London, £7500 should allow you to live comfortably - which includes rent, bills, food, socialising, books, stationery and everything else you might need as a student.
Now, that sounds expensive, but there is a lot of help available from the government and universities themselves. I'd suggest that you use the
student finance calculator to work out how much you'll get from the government. On top of that, you may be eligible for a bursary from your university. These are guaranteed if your household income is low enough, but the exact amount varies from uni to uni, hence why you need to look on the website of each individual uni.
Student finance (both that from the government and from the universities themselves is means tested. This means that if your household income (parent you live with + their live-in partner, or both your parents if your parents are together) is higher, they are expected to contribute towards your upkeep. If it's lower, then you'll get all the money you need to go to uni, without your parents needing to contribute.
When you see the word 'loan', it is a bit alarming at first. However, the way it works means that it's not like a normal loan - you only pay back what you can afford, and you'll never have bailiffs on your doorstep. What happens is that when you earn over £21,000, anything over that you pay back 9%. So for instance, if you earned £22,000 per year, then you'd repay £90 per year. If you earn less than £21,000 per year then you don't pay back a penny, and after 30 years anything you haven't paid is written off. It won't affect your credit score either. In short, they're the nicest loans you'll ever have by a long way!
Grants and bursaries are all free money i.e. you don't have to pay it back