Where does the UK Royal Family get their money from?

If you expect genuine royalty to "have a job" you obviously have no idea exactly what royalty is.
All countries with a monarchy pay for their royal family out of government money although junior members of the family (those unlikely to ever ascend to the throne) are likely to work in some capacity in the private sector

From the commoners or taxpayers, you and me!! Then they can live the high life, pretending to do some charity work whilst spending millions whilst normal people slave their lives away to pay the mortgage!!