Ngl, it was through a lotttt of work - My exam was booked for the 1st of September and I started prep about a month before that. I worked hard every single day of that month (excluding 5 days of holiday and a few more days of procrastination) and did so much practice that VR/AR/DA were practically coming out of my ears by the end of summer
If you want more specific tips, feel free to post on my wall and I'll give a more detailed response XD
A level: Law, Religious studies and English Lit&Lang Law is fine, its the RS and Eng I am worried about. I am doing both AS & A2, as I have decided to resit all my AS exams
Expensive, but it's going to be a great time I can tell you that much. The last time I was in London, I felt inadequate next to all the fashionable and beautiful people...so yeah, be prepared for that too!