Some other beneficial information to shortcut the process... More Rando Thoughts...
Learn how to read wind, specifically, reading mirage. Out here in the desert, we don't have that soft prairie grass that blows in the wind, or leafy green trees to blow in the wind - All our plants are hard, stiff, sharp, want to poke or cut you, and don't flex in the wind. Or, it's a cactus. Mirage is about the only way to go for estimating wind direction and speed out here. The good thing is - mirage is everywhere, anywhere that you'll find a temperature variable - which is everywhere. That skill is portable, no matter where you go.
Having accurate DOPE on your load is critical. The only positive way to do that is with (not only) the projectile data, but good weather data. Having weather on your phone is good, but it's only reading the nearest weather station to where you are, that it picks up. Not perfect, but plenty good. A Kestrel will give you weather right there where you are standing. It just can't get any better than that. Phone weather works, though. It doesn't suck. For the projectile numbers - Garmin Xero C1 or the new C2. Easiest way in the world to get accurate load/projo data. Plenty of us have them, so we'll meet up sometime and you shoot a batch across one.
Practice, practice, practice... Sounds hard to do if you aren't on the range, but it's easier than you think. First, I need to spend more of your money. Get a shot timer that has a programmable/delayed start. There are plenty on Amazon. I have a PACT Club Timer II, and they have a III version out now. Whatever works. You can get a ton of valuable training in with simple things, and 10 rounds of ammo. You could use a sawhorse as a barricade. Folding metal chair as a barricade. Test yourself, first, then define a goal.
First round. Set your sawhorse up, timer clipped to your non-firing side front or side pocket, gun loaded, chambered and on Safe, all equipment in hand - and start the delay on the timer... When the beep goes off, set your shooting bag on the sawhorse, gun on bag, acquire your target, and send ONE accurate, on-target round downrange. The timer will stop when it registers that shot. Check your time... Repeat, repeat, repeat, that's practice.
My personal goal, no matter what the obstacle or barricade or prop is - 10 seconds. I train to that. I can get the beep, get bag and gun on prop, build a stable position, acquire the target and send the accurate, on-target round, under 10 seconds. You gotta think about it - if you have 4 different shooting positions, and you have 90 seconds per stage, and it takes you 20 seconds to build a stable position and send a round - you're spending 80 of your 90 seconds just setting up and sending one round per position... What if you have 3 targets/distances per position? For all 4 positions? Time will get you...
Building a stable position and sending an accurate shot - is the most valuable thing you can train for all this stuff...
I kid you not, I've seen people take 45 seconds to send the first shot. 60 seconds to send the first shot... It's painful to watch, because you already know what's going to happen...