thanks alot for the details, for me it looks like the most important thing is that while launching you need to find potential customers and you do that via forums/social/... otherwise they will not locate your website just because I put a web site in the internet, how much do you think that is correct please?
Most important thing is launch THEN find out what is going on / working , converge on what's working "double down" on that. Keep at it. The fact of the matter is you can't predict the future. Luck + persistence. Be relentless.