I will toss in my .02 cents worth as well. Probably the very first thing is learn how to use a scale (I'm guessing one came in your kit? If not, get a decent beam scale for now and move to a digital later... but don't ever pack that beam scale away, they are infinitely reliable as opposed to electronics! I love my Dillon digital but I calibrate it often and cross check it with my beam scale as well. The all scales should be zeroed *every* time they are moved or even bumped hard!
I would also suggest skipping the automated tools for a while. Doing things by hand allows you time to see what you're doing in increments instead of grinding things to a nubbin (this may include your fingers!)
Get several reloading manuals. Hodgdon is online while Alliant and Western have downloadable PDF's for their powders. Sierra, Hornady and Lyman offer good manuals that have a wealth of info. There are several others as well. With multiple manuals you will also be able to see how different components, firearms and barrel lengths can effect a given load... the difference between each manual can be extraordinary!
When you're reloading make sure you have no distractions. No kids running around, no TV, etc. It's not particularly dangerous but reloading does take some concentration. I listen to music but that's the most distraction I can handle.
I am not one to talk about this but do try to keep your reloading bench tidy (mine looks like a tornado went thru my basement! But I know where everything is, so it works for me). I currently have 22 bottles of pistol powder and about the same number of rifle powders on or near my bench... but only one at time goes on the actual loading side of the bench, where my scales live. This is mainly because I'm still doing a lot of load development and I'm too lazy to be constantly getting up and running to the refrigerator (an old dead reefer I use as a powder magazine). It all gets cleaned up every few years!
Keep records! Details for every group of ammo loaded... powder charge & type, case, primer and bullet, seating depth, date and anything else you can think of! Keep different loads seperate (or marked with a felt pen) so you know what you're testing at the range. There's nothing worse than shooting a little group and then not being able to duplicate it because the data was lost. Don't ask me how I know this! I have multiple 50 round boxes for each caliber and keep slips of paper with the data noted for each load. Just make sure that little slip doesn't blow away at the range.
Reloading is not rocket science but there is a little voodoo involved. Your life will be much easier if you're meticulous about your reloading. Then, once you get proficient then you can start worrying about sorting and prepping brass and all the other goofy things we do to try and eke out the most accuracy possible. It can easily become an addiction. But it's a good, clean fun one!
Cheers,
crkckr