Go to your local small club (at Barton, perhaps?), and ask if you can work for hours. At Solent we have two very hard-working lads of your age steadily working throught their PPLs, while picking up aviation wisdom, rude jokes and bad personal habits from the people they work around. You also meet some fascinating people, who will usually respect you for your attitude to life, working hard for your goal. This is an age-old route into aviation, but still going!
Best of luck.