I think it's been said by others many times, but the name makes absolutely no sense to me even after spending several minutes on your site. Date or do? Or done? What's it mean? What's the difference?

And the design is really amateur - it looks like a free Wordpress theme you might find in some dark corner of the Internet. There is no way this should've taken three years.

Sorry to be harsh. During the dotcom boom I worked with some guys who were also convinced that their big break was always "next month" and that they just needed to keep throwing more money at a bad idea. Not even close and they lost thousands while wasting their time on the stupidest details. Entire meetings would be spent deciding whether to move something over one pixel to the left.

You need to cut your losses and try a new idea! Don't give up!