BC means Before Christ and is the original one, but people tried to change it to "Before Common Era", though some compromise on BCE and say "Before Christian Era".
By the way, would you want Thursday renamed since it's named after Thor?
What state do you live in that you can't save up 20k in 2 years? Can't you use what money you have to get a qualification to get a better job? Ever consider jobs in construction or sanitation? Those pay well and don't need much in the way of qualifications.