How do I correctly set the angle of my drop bars
I will post my "non-specialist" way to do this setup, considering:


I have no current bicycle with drop bars;
I've been bred on bicycles riding flat-bar mountain bikes, no tape;
I have more than one bicycle, and the following method is the only one I use for any bike (currently use a lot of riser bars, have used some albatross-style bars).


The method:


With your chosen stem already tight in place, and your saddle the height you usually ride, install only the naked bar(bare metal), and don't tighten it too much.
Install the brake levers in a "starting position" (but not the bar tape) and attach them to the brakes so they actually brake.
On an empty parking lot or the like, ride the bike while trying a lot of handlebar positions, rotating the dropbars forwards and backwards until you can grab a good and comfortable grip either in the drops, or in the upper parts. Don't overemphasize the brake lever position for now. Instead, focus on the bar position itself. Let the clamping bolts a bit loose, so you can get the "sweet spot" with precision and without too much effort. When done, tighten the stem bolts.
Repeat previous step for the levers, clamping them lower or higher. Find the ideal balance between comfortable "in the hoods" position, both for hand rest and brake reach, and a good brake reach in the drops. You can use the "classic position" (whatever it might be) as a reference, but not as a measure of quality. Your comfort, functionality and safety should always be the measuring rule. When done, tighten the brake levers clamping bolts.
After tightening everything in position, go out for a short ride "in the field", perhaps in light traffic, or in the road (a rolling terrain with crossings would be perfect), and perform some final adjustments;
Get back home and wrap the tape.


Of course, these steps might be adapted freely.

Hope it helps.