If you can follow a recipe, you can reload. Reloading is a great place to be a little OCD, conducive to keep all your fingers. A mentor is important. Get current manuals for the bullets you will be using, brand wise. Don't jump immediately to max loads, every barrel, every action, is an entity unto itself. . Bullet construction, hardness, brass capacity, and primers throw a bunch more variables in the mix.
I,d start with one brand of brass per cartridge, and use only that brand for the first year. Let's you establish a baseline, makes it a lot easier to see something out of the ordinary than if you're using a hodge podge of different brands. Lapua doesn't seem cheap at first, but you should get a lot of reloading out of each piece.
Pay attention to primer seating depth, be consistent in that area, it will let you avoid a few potential problems.
And if you have a Ruh-Roh moment, that's a good time to stop what you're doing until you have solved the problem...