Hello Mayor,
I agree with Bob C, you should have at least two current MAJOR load manuals to work from. My advice would be to read the "How To" portion very carefully. Sierra, Hornady and Nosler are the ones I use the most and you can't go wrong by having all three and reading the "How To" sections in all of them.
An online resource that's pretty good is
www.hodgdon.com, they have online loading data that you can work from if you use Hodgdon powders (NEVER substitute data developed with one powder when using another powder). Just make sure that you start at no higher than low to mid-range charges when you're getting your reloading feet wet, then raise the powder charges gradually watching carefully for any pressure signs and stop when you see any of them. Be very careful with overall cartridge length measurements and don't exceed maximum lengths when you are a beginner. Use a good set of calipers to measure with - they are worth the money.
A good chronograph is another important tool to help you in your load development - if you don't have one, you might buddy-up with an experienced and safe reloader who does have one, also, you might ask for some guidance early on with the process to make sure you stay safe and get off on the right foot.
The only way you can be truly "stupid" as you put it, is when you think you know everything and don't need to be careful during the reloading process. Don't become a statistic, safe reloading is fun and economical, "stupid" reloading can be deadly to you and those around you.
Good luck with your reloading, it's a great hobby I have enjoyed for years and I know you'll end up with some great ammunition. Don't fall for that all stuff about reloading saving money though - you'll just be shooting more! :grin:
Safe and good shooting to you!
Javelina