So here's my useful version of a reply. I apologize but going from zero to precision handloading in two years, I still have some appreciation for coming into this game absolutely new.
(I will use the term handload because reloading is just handloading with a used piece of brass, and handloaders going for accuracy prefer used brass)
I have four loading manuals with very good front matter about the handloading / reloading process. Lyman, Nosler, Hornady, and Lee all have decent instructional content. No two will tell you the same steps, because each has their own starting process and not all cartridges are hand loaded the same way. Lee tend to be focused on low cost, Lyman and Hornady on accuracy on a budget, and Nosler maybe a bit more oriented toward hunters. I found their different reloading processes to be confusing until I got familiar with them.
Anyway, if you share what cartridge(s) you intend to load, we can probably agree on some basic steps that will work for that cartridge. I load for my 6PPC and 6BRA. The bare minimum process is to size the brass and push out the old primer, load a new primer, fill with the correct measure of powder, and seat the chosen bullet.
Any other processes serve to make the basic steps go better / more consistently or to maintain the brass as it withstands multiple firings. Trimming, cleaning, uniforming, annealing, sorting, full length sizing, etc etc each have their place depending how many times you reload a piece of brass and how uniform (accurate) you want the ammo to be. These supporting methods really do vary depending on the cartridge. The value of these supporting methods vary with the distance you'll be shooting and the level of effort you want to invest in obtaining accuracy.
I started with an RCBS "Supreme Master" kit. The Lyman and Hornady kits look similarly good. They tend to have great discounts this time of year if you watch for them. If you're looking to load modern rifle cartridges accurately, it's a very good start. I immediately bought a Chargemaster Lite scale, which really helped because a manual scale is useful but when its your only scale, slows you down greatly. I also recommend immediately buying a good dial calipers and a base-to-ogive measuring kit and base-to-shoulder measuring kit. The Hornady Lock-and-load kit is very good for the money.
People will tell you that you'll re-buy most of the tools you started with and this is true. As you slide down the rabbit hole, you'll upgrade tools for either more speed, more precise results, or both. But it should not turn you off, because the basic kit parts remain useful in their own way for a long time.
