Heather Fell, Olympic modern pentathlete silver medalist, writes about her life 'on and off' the track.

I'm lost for words yet at the same time could write a book on how I feel right now. As I type this I remain out in Russia still trying to come to terms with my most terrible result at World Championships ever, to end the most terrible season of my competitive career!

I had my work cut out in the semi-final just to qualify, especially after an extremely poor fence that was limited due to my neck injury. I was determined to prove that I deserved my slot in the team and I managed to scrape my way into Saturday's final ready to fight another day.

Sport can be frustrating but somehow I think modern pentathlon tops the list, and getting five right on the day is a challenge. For me fencing is definitely a frustrating factor; in the final it all started so well yet ended so abominably it's hard to explain let alone understand. The swimming being purely physical is more predictable and considering I had not been able to train properly the week before I was pleased with my performance, as with the riding I think I redeemed myself after my poor performance at Europeans. In the final phase the combined event again my shooting started strongly but ended poorly, while my running was not up to the standard it should be. This was not only the World Championships but also an Olympic qualifier and as a result of my poor performance I've just increased the pressure on myself further. Unfortunately this is the end of the season and I must now wait until next year, so it's back to the drawing board and time to prepare for a very hard winter of training!

Although I've now just heard that I'm competing in the relay competition in less than 12 hours time! Yes, a bit of a shock but it's one last chance to end my season on a better note.