It can be hard to constantly remember to stay back from people 24/7, but a good top is to visualize that everyone is smoking and that you have to avoid being in the smoke stream.
And as to spreading the disease from contact with other surfaces, imagine that your hands are covered in glitter which will come off on any surface you touch. So use plenty of soapy water to wash down all those surfaces as often as you can.
It is estimated that the virus will live for up to 24 hours on cardboard and for 4 days or more on glass and plastic.
This brings us to shopping. Many of the items that you pick up in the supermarket may have been touched by an infected person, so when possible, do wash your shopping in soapy water when you bring in home, washing your own hands afterwards.
Anything that comes in an outer cardboard box EG. Breakfast cereals, should be taken out of the box which is discarded and binned immediately.
AND WASH YOUR HANDS!!! AND REMEMBER,
In self-isolating and practicing all the cleaning methods YOU ARE SAVING LIVES and easily the workload of all our healthcare workers.