Not sure I can add much, but I've been shooting trad bows for a few years now. Started off a a kid back in the mid 1950s.
First you need a bow you can draw & hold comfortably! If it's too heavy a pull or feels like a club in your hand, you're going to develop some nasty - hard to break - bad habits!
Second, you need some arrows spined for the bow you choose. Not always easy to find that match, but I'm finding carbons are a bit more "forgiving" than wood or aluminum. I now use the high priced "grizzly stiks" previously mentioned. The full length taper also makes them have a bit more tolerance of slightly improper spine and/or poor release when shooting. I bought a dozen bare shafts a couple years ago and still have 8 left. The missing ones were lost - not broken! They are very tough!
One other comment I feel I need to throw in. I see the TradGang site mentioned. If you go there be very careful of any trades, purchases, or business dealings. I went there a few years ago. They preach honesty & truthfulness, but in 3 trades/purchases I got badlyburned 2 times! On one I got into a discussion of how I got rooked and got the link deleted & I gotthreatened with being banned from the forum! They didn't need to ban me - I'll never go back! I had to have my attorney threaten one member who took my money to build me a bow and then never built it with a law suit to get a refund. He promised it within two months and then when he got the letter from my attorney over a year later called me and asked if I still wanted the bow, or if I wanted my money back! [:@]Not saying there aren't some guys & gals there that know traditional archery, just saying there might be a few predators looking for easy pickin's where trusting people gather.

Get a bow that feels good and practice every day! Don't be concerned with great accuracy at first be concerned with good arrow flight! If the arrow isn't flying good (fishtailing, porpoising, etc.) something is wrong with the arrows, your bow (nocking point too high or low for example), or your release (such as not holding you anchor point and not following through).
Get the bow, get some arrows (the best you can afford), and start shooting! Then come back and ask questions when things aren't going like you think they should.
As I said, I've been flinging arrows for about 50 years now, and I think as soon as I can get a little more practice and a couple minor flaws in my shooting form corrected I'll be a fairly good shot!