It can be hard to keep your head up in this situation, but, you should try. Just because this startup fails, don't let it effect you forever. Sure you have a

It can be hard to keep your head up in this situation, but, you should try. Just because this startup fails, don't let it effect you forever. Sure you have a right to be upset for now, but know that you have to move on. In the way that you sold your idea to the investor (whether it was by way of having a product to show, or just fancy talking, or a combination of both), you will have to rise from the ashes and prepare to do it again. You can, and probably should eventually frame this as experience, because thats exactly what it is. A lot of investors will look at this as a learning experience for you, if your able to keep yourself from being rattled out of the game. The next time around, you will be able to look back on your experience, and hopefully make different choices that will help you stay at the edge of your seat. Lastly, sometimes ideas just don't work, despite all your best efforts. Sometimes there is little you can do to change the course of history. Often, its a combination of both bad decisions, and being in the right place at the wrong time, or the wrong place at the right time.