Isn’t that the crux of it? Just as you can tell when someone is sandbagging or BS’ing you by using jargon, changing subjects, talking slower, etc…you can fool yourself to the point that you actually have rationalized away a perfectly good action plan.
Your biggest obstacle in life is yourself. You can make the obstacle more formidable by setting it up as an intricate web of reasons and trapdoors that would hinder your progress..
Or.. You can just go do the thing.
Sure, think ahead, plan, be prudent…but stay out of your own way.
Now go fire it up and do that thing. Think later why it wouldn’t work, you just might surprise yourself.