I have been negative to those who bought at inception with uninformed unrealistic expectations, and inexplicably held on for seven years, and are now whining incessantly about the wrong they have been done.
When you buy a start-up development stage company, you are buying a story. A high percentage of those stories never pan out. You are lucky to be still in the game. The game you have played with this one is the venture capital game. Venture capitalists buy stories by the dozens and expect that many will eventually fail, and others will take forever to make them any money. And they don't cry over the losers.
Judging from a reading of your posts, I offer my professional opinion that you don't have the aptitude or temperament to be a venture capitalist. I will give you the benefit of the caring and sincere investment advice that I have given to many of my friends and family: index funds.