Why Do I Make Impulsive Decisions I Later Regret

This page reflects our understanding of mental health topics as of 2026. If you are reading this at a later date, some details may no longer be current, so please verify anything important against up to date sources. If you notice anything that needs updating, we would welcome you letting us know.

The expensive purchase you did not need. The message you sent in the heat of the moment. The job you quit on a Tuesday, or the trip you booked at midnight. At the time, it felt right, even exciting. A day or a week later, you are left with the consequences and a familiar question: why do I keep doing this?

Everyone acts on impulse sometimes. When impulsive decisions happen often, cause real harm to finances, relationships, or work, or seem to come in clusters, it is worth looking at what is driving them.

It Could Be a Lot of Things

Strong emotions. Anger, hurt, loneliness, or excitement can narrow thinking and push toward quick action. Many impulsive decisions happen in emotional moments and look different once feelings settle.

Stress and exhaustion. When you are depleted, the parts of the brain that weigh consequences work less efficiently, making quick, reward-seeking choices more likely.

Alcohol and substances. Drinking and drug use lower inhibition and are behind many regrettable decisions. If this pattern sounds familiar, see Why Do I Rely on Alcohol to Unwind.

ADHD. Impulsivity is a core feature of ADHD, showing up as quick decisions, impulse spending, interrupting people, and acting before thinking. With ADHD, this pattern is usually lifelong and fairly consistent rather than coming in distinct episodes.

Intense emotional swings. For some people, emotions rise very quickly and powerfully, and impulsive actions become a way to cope with unbearable feelings in the moment, as described in Why Do My Emotions Feel So Intense and Fast-Changing.

Avoiding discomfort. Sometimes impulsive choices are ways to escape boredom, anxiety, or a difficult feeling quickly, even at a cost later on.

When It Looks More Like Bipolar Disorder

In bipolar disorder, impulsivity often appears in clusters during hypomanic or manic episodes, periods of elevated or irritable mood with increased energy. During these times, judgment can shift dramatically. Risks seem smaller, ideas seem brilliant, and consequences feel far away.

Common examples during these periods include:

• Spending sprees, large purchases, or risky investments.
• Sudden major decisions, such as quitting a job or moving.
• Risky driving, sexual behaviour, or substance use that is out of character.
• Starting many ambitious projects at once.

The key clue is timing. Impulsive behaviour linked to bipolar disorder tends to come with other changes, such as barely sleeping yet feeling full of energy, rapid speech, and racing thoughts, and it is often followed by a low period. When impulsivity happens only during distinct episodes like this, and much less at other times, bipolar disorder is worth considering, especially alongside a history of dramatic mood swings.

If impulsive behaviour ever involves serious danger to yourself or others, or comes with signs of losing touch with reality, seek help right away by calling 911, or call or text 9-8-8 for crisis support.

What Can Help

• Create a pause. A simple rule, such as waiting 24 or 48 hours before any purchase or major decision above a set amount, builds in time for reflection.
• Add friction. Removing saved card details, deleting shopping apps, or giving a trusted person input on big decisions makes impulses harder to act on.
• Notice your states. Track mood, sleep, and stress alongside impulsive choices to see when they cluster.
• Name the feeling. Asking "what am I feeling right now, and what do I actually need?" can reveal a better way to meet that need.
• Repair calmly. After an impulsive choice, focus on fixing what you can rather than harsh self-criticism, which tends to fuel more impulsivity.

Getting Support at Pacific Maple Psych Centre

If impulsive decisions keep causing problems in your life, an assessment can help clarify whether ADHD, mood cycles, emotional regulation difficulties, or something else is involved. Therapy can then help you build practical strategies and a greater sense of control.