It's not hard to get energised and excited at the beginning.
The idea is so fresh and so charged with hope that defeat seems implausible or even impossible.
But people have minds of their own, and aren't afraid to use them.
Clever people can be so very clever at being dumb, that sometimes you find yourself wondering why you bother at all.
Keep at it.
Obstacles are there, not to defeat you, but to help you improve your thinking.
Just be sure to rank them.
Are they absolute obstacles, or just relative obstacles.
You know you can do it.
Can, can can can!