Lately I've taken a lot of interest in quantum mechanics but I have no formal schooling on the topic. Actually I dropped out of high school and joined the army, so besides using a map and compass or counting ammo I've had barely any use for math at all in about 10 years. But I've enjoyed quite a few articles and youtube videos on the double slit experiment, quantum entanglement, wave-particle duality, superstates and so on. So my question is, how long would it take me to learn the math, processes, experiments, etc. to understand and prove these things for myself? Let's assume that my math skills and overall intelligence is exactly average, whatever that might be. How many years of school and university would it take? And how hard would it be to learn on my own?