It was running across Tower Bridge, the wall of supporters either side of me, strangers cheering my name and the iconic views of London stretching out behind them that I realised this wasn't just the best race of my life it was the best day.

My organisation from last week, that erred on the side of obsessive compulsive, paid off and I had everything I needed for a great race. The weather was perfect - sunny enough for the spectators but not too hot for us runners.

For anyone wondering whether to enter the ballot for 2015 I have two words of advice - DO IT. Yes, the training is tough and takes time - you have to work on your nutrition, strength and put the miles in, but the race itself is nowhere near as tough as the prep. I always listen to music when I run but yesterday I don't think I listened to one song all the way through I was too buoyed on by the crowds and the live music.

Here are some tips that I wanted to share that helped get me through at only 5 mins slower that my target time of 3:50:

Queue up for the toilet when you arrive. Once you've gone, head to the back of the queue. Keep doing this until the race starts - I went 3 times and then headed to the start line. This tactic worked and I didn't need to stop once during the race.

Split the run in to four 10k's it's mentally far more manageable this way. The first 10k is near the Royal Maritime Museum and Naval College in Greenwich. The next 10k finishes around Tower Bridge. Onwards for another 10K and you'll be at Canary Wharf. Then it's the homestretch, just one more 10k to the finish line.

At the expo on Friday I picked up a wristband from the Lucozade stand, like the paper ones you get at festivals. On the band was the goal time, then all the 26.2 splits showing at which time you should reach each mile, this was invaluable as it made me mentally split the race up into 26.2 bite-size chunks.

Don't take water from every station - you only need to sip at water regularly throughout ,rather than gulp it down. You want to keep hydrated without needing the toilet!

Finally, if you're lucky enough to get a place enjoy it, it really is one of the best things you will ever do.