Yeah, sorry, that's going to take a while
Large scale graphene production currently means graphene flakes of the order of mm², if you want good quality CVD grown (and the quality is limited by the transfer method, and thus mostly by the hexagonal boron nitride flakes, which we can't really grow like graphene so far). And it needs to be good quality if you want those mystical mechanical properties, because defects will ruin everything.
Rather than graphene I'd recommend a woven carbon nanotubes cloth. Much better for mass production (no need for pristine, large scale flakes, much higher tolerance for defects).
/edit: God, that Film Theory video... No, it's not diamond's structure. It's single sheet of graphite (not "molecule"), and it's an sp² binding, not sp³ as in diamond. In fact, it's a completely different crystal structure than diamond (which is a cubic lattice, while graphene has a hexagonal lattice). Never listen to laymen when it comes to stuff like that.