[vladisac]

Taking this decision depends on the context of the question. Do you have customers/revenue? What is the feedback you received so far? How does your P&L statement look like? :)

My take on this:

I stick if I have "some" customers/revenue and "some" positive feedback.

Pivot should be influenced by feedback (if I have any) and by the experience of the market (again, if I have any), provided costs can be sustained.

Quit if I accomplished nothing yet and there are little chances to make any revenue/profit in an established time frame. It's hard to give up on stuff you built and invested in and it gets harder the more you invest.

PS: I have my own company for some (5) years now and I have seen good and bad times.