yeah i see someone said be safe i would second that and whatever you do is don't get distracted focus on what your doing and look in each case before you seat the bullet to make sure you have powder in there you don't want to forget it !!
^^This.
That includes no radios, TVs, kids, friends, wives, cell phones, texting, etc., your complete focus should be on reloading. Do I need to mention alcohol or smoking?
You will need a notebook to write down your loads and how they performed. A way to store and organize targets (IE: take a digital picture) is also helpful.
I would also suggest you write your own reloading notes specific for your equipment and written in a way that you can understand and quickly reference. I have notes for all of my equipment. When I need a quick refresher I look at my notes instead of searching though an owners manual.
Save all your manuals in one place.
FWIW I have a single stage RCBS. My 49 year old legs and back can comfortably (and enjoyably) manage 50 rounds in a single reloading session. 100 rounds is do-able but tiring.
Good luck! Reloading is a lot of fun.