As stated above vet med is not the best paid job in the world. It also entails ridiculously long hours, demanding clients and will eat into your life, this is why the people who become vets do it because they are passionate about animal health and welfare and because it is their dream career, it's also why universities are very tough on veterinary medicine applicants because they want to invest in people who will stick it out and enjoy their career.
As you've said, you are still young. Despite having wanted to be a vet since the age of 3 I contemplated everything from medicine to petrochemical engineering (apparently very well paid) because I thought I was being smart and making the best choice for my future. I even took another degree with the idea of iving a cosmopolitan life and going into magazine editing (yes this was stupid...)
BUT I realised that I wouldn't swap anything, even an extra £100,000 per year, for every day until retirement spent in a career that is as diverse, rewarding and all that I've ever wanted. That lasts a lifetime of enjoyment, an extra 2-3 bedrooms in my future house does not...
As far as fees go, (as it stands) at most top universities you will pay £9000 for every year of your course. If you don't take vet med/dentistry/medicine you'll generally take a 3 or 4 year course which in the greater scheme of things won't make that much of a difference to how much you will owe the student loans company. Repayment details are below and you can find out more on the student finance website. In the meantime I would get as much work experience with animals as possible (get veterinary experience later if there's a standard age limit in your area...) in order to give you a better idea of all the environments in which you would be working should you be lucky enough to get on the course
sorry for the essay and good luck!
Recipients are liable to repay their loans (Tuition Fee Loan & Maintenance Loan) in the April which falls three years after the start of their course, even if they are still studying. But they will only make repayments if their yearly income goes over £21,000 per annum or the monthly (£1,750) or weekly (£404) equivalent. Then they repay 9% of what they earned over the threshold, if they earn less than this amount then no repayments are deducted. Payments are collected directly from their salary much the same way as income tax is remunerated. The rules on making payments on top of your monthly repayments haven’t been finalised.
The amount owed will increase each year with interest. Interest will be charged at the rate of inflation (Retail Price Index (RPI)) plus 3% while studying, up until the April after you leave university. From the April after you leave university or college if you are earning below £21,000, interest will be applied at the rate of Retail Price Index (RPI)(inflation). For graduates earning between £21,000 and £41,000 interest will vary between the rate of inflation and the rate of inflation plus 3 per cent depending on your income. For graduates earning above £41,000 interest will be applied RPI plus 3%.
After 30 years; if the recipient reaches the age of 65 years; if permanent disability causes a cessation of work; or if death occurs then the loan is written off.