Where there is an open mind there will always be a frontier. — Charles F. Kettering. American inventor, engineer and businessman (1876–1958)
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.
Every great improvement has come after repeated failure. Virtually nothing comes out right the first time. Failures, repeated failures, are the posts on the road to achievement.