Well having been there and after helping/mentoring someone this last year, I will give you the same advice I gave him.
1: get your Class One medical, you will need to go to the CAA at Gatwick, if your dream is to become an Airline pilot, you will need one, better to make sure you have no underlying conditions now before you spend lots of money.
2: if you are doing a EASA PPL, I suggest you start with your 7 ground exams ASAP.
3: keep studying and good luck.