Personally i think that being flexible doesn't reduce your risk of injury. you can still injure yourself even if you're flexible
Clleaning dust and dirt, ensuring proper assembly, and completing preventive maintenance.
It really depends on you and your preferences. If you're okay with getting fit in a longer time frame and if by get fit you mean lose weight, then I would suggest do some cardio exercises each day, ideally for an hour or so (running, walking, exercise machines like elliptical or treadmill). Also, make sure to have a balanced diet. Try to limit bad carbs (bread, pasta, etc. ) when possible and eat lots of protein and vegetables. But it is okay to not follow your diet all the time; you can have some cheat days.
Hope this helps
