Sentence:  Damen told BBC Sport: "The crowd were phenomenal they carried me through the last few metres. I don't think you can ever prepare enough for this event. It's a massive <WSD>learning curve</WSD> for me. From here, I'd like to work on my shorter distances and get some speed back." 
Meaning of the word marked with <WSD> tags:  A measure of how much there is to learn in a restricted amount of time