If you can find a small local flying school, try offering to work for flights. Where I teach we have two 16-year-olds working the reception at weekends (one has been for well over a year) and they are getting through their PPLs quite well, both good pilots starting so young. Shows enthusiasm and willingness to work for your goal too. It is a good start, from here you can build your experience gradually without putting £40-65,000 up front,a nd be a better pilot for it.
Also consider not going to university or delaying the decision to go to university until you have tried to build a flying career. I never even thought of not doing a degree, and although I think it was the right thing to do I feel I should have looked at other options. The degree will not help your flying career, and although it will give you a good back-up this could be completed later in life if you need the back-up, and the debt you will pick up at university will not help fund your CPL!