Without knowing more details, I would tend to lean towards suggesting that you raise some angel money, oir shelve it while you work a full-time and stack some cash in the bank.

What you are describing sounds like the beginnings of a death-by-a-thousand-cuts timeline.

When you say "running", are you actually running a business (ie: managing customers, cash-flow, growing the product, expanding the business) or are you still in the phase of building something and trying to attract a cashflow?