<human>: Can you provide a brief overview of the text?

So, I'm not a fan of big long posts so I'll pretty much cut to the chase; I've been training and preparing to join the West Australian police force for a considerable length of time. Been doing all the right things and was on track to complete my physical exam which was my last step to pass. 
On Tuesday evening I was riding my motorcycle home from work and was clipped by a car.
I came off the bike and went under the car tyres. I completely understand that I am lucky to have lived through it despite wearing full protective gear, but my leg and ankle were badly damaged in the course of the incident. To a point that I have been advised that joining the force will no longer be possible. 
After all my effort and training what I've wanted to do since I was a young boy gone in the space of a few seconds and now I'm not sure what to do about it.
<bot>: Been training for the poluce force. Had a motorcycle accident and have beenn told that it is no longer possible due to extent of damage to leg. Not sure how to cope with it