The odds of winning the "normal" uk lottery is about 14 million to one.
So if there were 14 million balloons in Wembley stadium, and only one had your name inside it, then that is the odds you pick out the right balloon if you could ony pick one balloon (blindfolded !).
There is nothing you can do to gaurantee you will win the lottery. If there was then everyone would do it.
But there are various things you can do to reduce the odds a little.
One example is to NOT buy one ticket each week, but every 7 weeks buy 7 tickets.
These seven tickets should have a spread of the same 7 numbers. So lets suppose your numbers were 1234567.
The first ticket has 123456 on it, the second has 234567, the third has 134567 and so on (you leave one number out each time). So you buy 7 rows, each with the 6 different numbers.
That way you have 7 numbers covered out of the 49 instead of 6, reducing the odds a little. Not a lot, but a little.
I am not a statistcial expert so no doubt someone will say the odds dont change at all, we shall see. I understood they do.