It is not a disgrace to fail. Failing is one of the greatest arts in the world.
The sure ways to create new ventures of discovery are to keep an open mind.
We are just in the kindergarten of uncovering things; there is no downcurve in science.
Research means that you don't know, but are willing to find out.
Keep on going and the chances are you will stumble on something, perhaps when you are least expecting it. I have never heard of anyone stumbling on something sitting down.
Our imagination is the only limit to what we can hope to have in the future.