Taking on staff should be part of a long term strategy if your intention is to grow your business. From my own experience every time I took on a staff member my nett earnings fell. That's just a cost of expansion, but as the business grows and revenues increase then that new member of staff pays for themselves.
Dont expect to take on staff and have them pay for themselves within a week or two, it takes time. As your business gains momentum then the time it takes gets shorter. Your 2nd member of staff should pay back slightly quicker.
Jay you have unrealistic expectations at the moment, think more long term, if your finances cant stand it then you have taken on staff without enough cash reserves. or growing customer base. Its not easy this employing and expansion malarkey