London Marathon

It's nearly three years since I lost my beautiful sister and this year I wanted to take on a big challenge in her memory, raising money for a cause along the way that was very close to her heart.
Breast Cancer Now is a charity which provided Beth with so much support and she in turn volunteered for them to give something back and help support others in a similar situation.
I'm going to need all the support and motivation I can get to get me to and through the marathon on the 27 April, having never run anywhere near this far to date.
Please help me if you can.