I got a little bit of a headstart on you, since I started reloading in 1963, and at last count was somewhere around 800,000 rounds loaded that I can account for. There's probably been much more than that, since when I first started, I loaded and shot as fast as I could manage to scrape up enough money for components.
I started loading with .30-06, then .38/.357 Magnum, but now I'm loading for .31 different calibers, and still having fun doing it. I just hope it doesn't become an addiction, since you know what they say about addicts..........
Hope this helps.
Fred