Book!
BOOKS!! Don't start loading before you've read a couple books on it! So you have the press and the dies... do you have the balance, something to clean and prep your brass? Calipers? Boxes for brass and boxes for completed bullets? Lubricant? Rags and canned air for cleaning up? A kinetic pullet puller or a collet die? Funnels? Perhaps a powder trickler? I'm not saying you don't, I just hope you do!
I really very much recommend you get the ABCs of Reloading from C. Rodney James.
https://www.amazon.com/ABCs-Reloading-Definitive-Novice-Expert/dp/1440213968 (I think there's a few more books of the same name, by different authors). It's an oldie, but it has a huge amount of excellent information that will give you a great overview of all that's involved with different types of reloading.
My next choice would be Lyman's Reloading Handbook
https://www.amazon.com/Lyman-50th-Reloading-Handbook-Hardcover/dp/B01HH08L1A. That's another great reference to learn about reloading.
I really like these books (I have both, obviously) because they're not specific to any bullet-making company. I also use Hornady's 9th edition (now 10th,
https://www.amazon.com/Hornady-99240-Handbook-10Th-Edition/dp/B01MAUZ71V, though the only recipes it contains are naturally those that make use of Hornady's own bullets (they're common enough and of a good price/quality ratio to be easy to find, so I thought it was worth getting it).
There's also quite a bit of information available on the Internet. Hornady has a series of YouTube instruction videos that are good to watch. Bullet and powder manufdacturers have load data. Etc, etc...
WELCOME TO THE MADHOUSE! You can check in, but you can't get out before you've loaded 50 000 bullets!