I would gather up old, old prewar scraps and books and slowly learn about robotics and electronics. I would gather money and hire assistants and consultants and then use my knowledge to invent a brain implant. I would then slowly absorb people into a hive mind, where they would sync knowledge on disc and then go out and explore, find and survive. This would permit us to find a suitable home and then share the knowledge. Once done, we would go out, gather equipment and build a fort. With that done, we would gather more people into our hive mind and soon become a powerful and formidable faction, for our sheer tactical ability and overall gathered intelligence.
And the wasteland would be all ours.