In reality £1 million isnt THAT much money especially if your a youngish person, as its got to support you for your whole life.
Assuming you win a million age 25 then die at 65 (the excess's took thier toll

). Your only looking at £25k a year. Interest earnings arent going to be so great next decade and you wil probably waste £500k with ease on a flash house, car, and a few holidays in the first few years.
To make it work youd need some shrewd financial advice to get a decent return by investing it somewhere.