Tools slipping out of my hands. Failing to realise that what I
am relying on for balance (and I balance entirely by touch) is
not stable. But the former is the main one, and applies to
almost every user of potentially dangerous tools. It's a known
cause of industrial accident, in most cases a price worth paying
because of the reduced risk - but sometimes it is the protective
gear that is the main risk.

If astronauts can cope, so can you, Nick :-)

Yes
But
Astronauts undergo at least 2 years if intensive training