100 years ago: 1912 - many single women were teachers, owned businesses especially shops, ran services such as dressmaking, laundering, catering. The new-fangled typewriter and telephone meant that women's better hearing, higher voices, nimbler fingers (and lower wage demands) created loads of city-based office jobs. Women nurses, like teachers, were expected to stop their profession if they got married.
50 years before that: you were better off being single as the married women's property act had yet to come about. So on marriage all you owned became your husband's property, as did your children.
At both these times you could have developed an excellent living as a medium as interest in 'the other side' was massive, trading standards did not exist and as long as you did not claim to practise witch-craft you were doing nothing illegal.
Similarly, making and selling your own 'herbal' potions was big business - mainly laxatives, 'tonics' (a bit of opium in suspension) or for 'women's ailments' ie to induce abortion although nobody spoke its name.
The past isn't all bad.