Well I guess it all depends on how young you are Dave, today's vehicles can be very difficult to 'repair', if the fault is in the ever increasingly complex electronics systems.
When we (wife n I) built the kitcar 18 years ago I'd never built one before but had no thoughts that I wouldn't be able to do it. Like many people my age at that time, I had changed / worked on engines, gearboxes, brakes, suspension, fuel and electrical components on cars and motorbikes. Many said suggested they wouldn't be able to do the same (build a kitcar) but I question if that was more a limitation of their mind than their abilities?
In most cases I only know something can't be done (by me) when I try and fail. As with this recent exercise with the 1 year old 'un repairable' Zanussi washing machine I was given (failed bearings in a 'sealed tub') which is now doing sterling service with little cost and just an open mind. ;-)
Ah. In this instance I believe she backed up against a kerb and fell backwards (but put her hands out to save her self all the same but backwards).
She's had her second cast done now so I assume things are progressing well.
All the best ..
T i m