There's just one week to go until my big race of the season, the World Championships.
It is this race which I have worked towards all year and it is this race which has driven me to train harder than I ever have before: to get to the pool at 6am before work; to put in the hours on the bike; to become stronger and faster on the run; to work harder in the gym.
If I am honest, I'm not sure a day has gone by since crossing the line at the Worlds last year when I haven't thought about this year's race. For so long it seemed so far away yet now it is just seven days away.
I'm travelling to Hamburg, the race venue, on Tuesday, by which time I will be a couple of days into my taper (the name given to reducing your training to ensure your body is fresh and rested on race day).
There will be all the usual boxes to tick: registration, GB team meetings, check-ups with the team therapists; recces of the course. But there will also be the strange waiting game to play when you seem to have little to do other than think about the race and play it through hundreds of time in your head.
I was reading Sir Roger Bannister's book, The First Four Minutes, yesterday, and he described this time perfectly: "However slowly the seconds and minutes passed, the moment for the race must come, sometime, somehow. The agony of the suspense could not last forever."
He is right, of course. And come 9.30am next Sunday, the time will come to put all of that training and preparation to good use and get out there and race hard and fast. There are four girls from Britain alone (myself included) who are all worthy contenders for podium places, so there is no denying it will be one hell of a race.