Oh I am well aware of the Riemann hypothesis. It drives me nuts as I can’t deal with anything too abstract. Hence my problem with advanced mathematics. It doesn’t stop me from trying though.
Fermat claimed to have proven something and it took 350 years and a lot of very difficult mathematics to prove it. I don't say "again" since nobody truly believes Fermat had a proof. However, his claim led to the development of entire branches of mathematics.
Just make sure you won't try what already has been proven impossible:
A cube cannot be doubled by using a straightedge and compass.
A circle cannot be squared by using a straightedge and compass.
And an (arbitrary) angle cannot be split into three equal parts by using a straightedge and compass.
Here is a nice anecdote about the Riemann hypothesis:
It is not quite clear whether Hardy believed in God or was just superstitious. However, in any case, he believed God would do everything to make his life tough and complicated. One day he was on a journey back home to England. (I've heard it with Harald Bohr and Copenhagen, but also found Norway on the internet.) Anyway. He had to take a ship and the boat he got didn't look very trustworthy. Typically, he thought, why me?
So he sent a postcard before boarding - say to Bohr - claiming he had found the proof of Riemann's hypothesis.
When afterward asked why, he replied: Well, if the ship sank the proof would have been lost but I would have become the most famous mathematician of my generation. God won't allow this to happen. This way I only had to write Bohr another postcard in which I stated to have made a mistake.