If your unsure about the projects potential success, then defiantly dont quit your job just yet, as you might end up with no project, money and job. To me it sounds like you need some out side help, either in the form of another 'founder' or may be hire some coders etc to get a prototype up and working. Once you have an initial version of the website/server it's a lot easier to get some user feedback and see if the project actually has some potential, it doesn't need to be 100% or even 50%, just something you can show.
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If your unsure about the projects potential success, then defiantly dont quit your job just yet, as you might end up with no project, money and job. To me it sounds like you need some out side help, either in the form of another 'founder' or may be hire some coders etc to get a prototype up and working. Once you have an initial version of the website/server it's a lot easier to get some user feedback and see if the project actually has some potential, it doesn't need to be 100% or even 50%, just something you can show.