You have no truth in the moment
About half of people have a defined Solar Plexus — the emotional center. If you're one of them, your decisions are made not by the head and not by the body in the moment, but by time. Inside you a wave is constantly running: it lifts you, then lowers you, and so on in a circle, often with no reason at all from outside.
An uncomfortable thing follows from this: right now you don't know the answer. Not “you doubt” and not “you feel bad” — you simply don't know. What's taken for clarity is most often just the point of the wave where the question caught you.
But this explains half of a biography: the delighted “yes”es you later regret, and the gloomy “no”s you later feel awkward about. Neither was a decision. It was weather.
The rise and the dip are both honest
On the rise the world looks great: the job is promising, the person is wonderful, the trip will surely work out. On the dip the very same set of facts looks dull — the job is a dead end, the person is wrong, you don't want to go anywhere. The facts, meanwhile, haven't changed by a gram.
The temptation is to declare one of the states the right one. Usually people pick the rise: “this is the real thing, and the dip is just tiredness”. Less often the other way around: “on the dip the view is sober, and the rise is self-deception”. Both are off. The top and the bottom aren't truth and lie, but two sides of the same view, and they lie equally.
Clarity lives not at the peaks but between them, at the calm point. There both the euphoria and the gloom go away, the question remains — and that's when the answer is finally audible. The task is just one: live to that point without signing anything along the way.
The “until tomorrow” rule
The practice here is one, and painfully simple: don't decide today. Put off any question more expensive than a cup of coffee at least until the next morning. Keep the big things — a move, a wedding, quitting — longer, over several waves in a row, until the answer stops depending on the day of the week.
Putting off doesn't mean forgetting. Write the question down and come back to it tomorrow in the same form, word for word — otherwise memory will rewrite the wording to fit today's mood. If the answer holds after a day, and after three, and on a good morning and a lousy one, it's yours. If it dances around — it's too early, and no logic will speed that up.
There's also a side effect that few talk about: a good share of questions simply fall away overnight. Not out of cowardice, but because what you wanted wasn't that, it was to release the tension — and by morning it had gone by itself. There used to be dozens of such “decisions”, and then you honestly had to carry them, because the promise had already been given.
When they push: “decide now”
Pressure for speed is an ordinary technique, and it works precisely on people like you. So it's worth learning the answer in advance: “I need until tomorrow. If you need an answer right now, then it's a no.” Not rude, honest, and it closes the conversation.
Almost always it turns out there was no urgency. There are only a handful of truly urgent decisions in a life, and they're usually not about money or relationships but about emergencies. Everything else can wait a night. And someone who isn't ready to wait a night is telling you a lot that's useful.
With loved ones it's simpler if you explain the mechanics in advance. Not “I'm a difficult person”, but “in the evening and in the morning my answer is different, and the morning one is more reliable”. An agreement helps a lot: we discuss important things not on the run after work but on a day off, and nobody demands an answer that very minute. A loved one who has accepted this stops catching you out with “but yesterday you were on fire about this idea”.
Why purchases made on the rise get returned later
The most expensive place for a person with a wave is a store on the rise. There the feeling “I need this” is indistinguishable from a decision: your hands reach out by themselves, and your head makes up explanations after the fact. A week later the box stands unopened, and you honestly don't remember why.
The same rule saves you in its everyday form: put it off and come back tomorrow. Salespeople, by the way, know all about the wave — hence “sale until the end of the day” and “only one left”. All of it is invented precisely so that the calm point never arrives.
With big purchases it's the same, only the price is different: a car, a renovation, a loan, a trip “while I'm excited”. Set a threshold by amount — say, anything more expensive than a month's food spending waits three days. Not one purchase you truly needed has ever suffered from such a pause.
What this doesn't mean
This isn't about slowness. You can react quickly as well as anyone — in conversation, at work, behind the wheel. The “until tomorrow” rule concerns decisions, not actions: you don't have to postpone a witty remark, but you do have to postpone a “yes” to someone else's proposal.
And it's not a diagnosis. The wave isn't a malfunction and not a reason to consider yourself an unstable person; about half of people live the same way, it's just that few put it into words. A mood that changes by itself gets in the way in exactly one place — when you build decisions on it. In everything else the wave is more of a gift: on the rise it's warm and fun to be with you, on the dip you see what the energetic don't, and the people around feel calmer for it than from an even friendliness.
And don't turn the rule into an excuse. “I need to think” is a working tool only as long as an answer follows it. If you've been “waiting for clarity” for a week where everything is clear, that's no longer the wave but reluctance to refuse. One honest “no” helps — and that, by the way, is also better said in the morning.