Two Mentalities

Mentality one: Fundamentalist. I brainstorm my game plan, try to execute it as accurate as possible, once I missed, I try to get back to the original plan and foundation.
Mentality two: Liberalist. I brainstorm my game plan, try to follow the plan, once I missed, I play as it goes depending on conditions and situations I am facing.

Scenario 1: Par 4, 350 yards, dog-leg left, bunkers at 230 yards, hazards before green.
I planned a two-on attempt, first drive to the turning at dog-leg besides the bunker, a short iron approach shot to green, aim for 1 putt for birdies and 2nd putt as backup.
It is always easy when things are all within imagination. Reality:
I launched a good drive but did not land where I targeted and it dropped at the edge of the fairway bunker. Not a bad shot but left me a difficult condition to play my approach shot. I did not have a good stance and missed my second shot, pull hooked it and it landed into the left rough before the water hazard, a tree trunk is partially blocking my path to green. At this point, I could chip out and try to get back on track as pointed out in mentality one or I could try a punch shot approaching the green as pointed in mentality two. Mentality one will get me bogey at best but mentality two will get me par at best. What should I do?

Scenario 2: Par 5, 510 yards, straight but sloped fairway, bunkers at 240 yards and around the green, trees along the fairway.
I planned a three on attempt, driver 250 yards, 3 wood 220 yards and a pitch approach shot.
Again, it is always ideal in the world of imagination, Reality:
I slightly pulled my driver, ball landed short on the first cut rough to the left, leaving me about 295 yards to green. Not a big problem but I did not get the perfect lie as I planned; no obstacles are blocking me but wide open and long distance fairway to green. At this point, applying mentality one, I could use my 3 wood and get back on track as planned. Applying mentality two, I could use a utility club and aim for short iron instead of wedge for 3rd shot. Mentality one will get me three on at best, so is mentality two. What should I do?

Two mentalities, two scenarios and the results between rewards and risks could be as wide as Grand Canyon.