RE: Shot my first Trad. 3D shoot,
Don' t let it get you down--having fun is the most important part. 3-D tournaments can be nerve-racking, until you get used to them. Shooing around/with strangers and/or crowds, new terrain, the pressure of competition, etc. Also, if you don' t have a 3-D target or two to practice on, they are (to me at least) a lot different than shooting a flat target.
Work on picking a spot. Don' t shoot just at bull' s-eyes or dots. Learn to focus on a point instead of the entire target--practice picking a spot on animals around the house (don' t shoot them though!), or even on everyday objects such as a road sign (not while you are driving). Don' t shoot marked yardages--get your brain to do the calculating for you. Learn where the rings are on the targets--most all of them have some kind of reference you can look at. If you only have flat targets to practice on, set them at angles now and then. Get used to shadows, leaning targets, quartering targets, etc.
Hang in there--the more you go, the better you will get.
Chad