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📌 [Site Map] For First-Time Visitors: Neru's Note Guide to Facing Investment Mentality [Investment x Psychology]

ネルゥ@投資家

(Last updated: 2026/4/18)

Nice to meet you, I am Neru @ Investor.

This note is a place where I record how to deal with the reality that “the heart wavers before the stock price does.”

・FOMO (the anxiety of being left behind)
・The pain of being unable to cut losses
・The frustration of being unable to let go of unrealized gains
・The feeling of not being able to sleep on nights of market crashes

I write as honestly as possible about how I have dealt with that “investment mentality.”

I am not a professional, just an ordinary individual investor. However, I am a “person on the front lines” who has lived for many years with emotions like “anxiety,” “regret,” and the “impulse to win it back.” This place is a record of that, and a place where those who have felt the same can find a little peace of mind.


✅ First, read these three articles

・[What I did before reaching 50 million yen in assets] Part 1: 10 consecutive plain moves (Action Log)

・What I was a little concerned about during the week the Bank of Japan didn't change interest rates [News x Investment Psychology]

・The 7 indicators I check every morning—The order of my morning market check [Investment x Psychology]

✅ Where should you start reading? (Entry points by purpose)

  • Feeling a bit tough right now → Go to “Investment x Psychology (The reality of a wavering heart)”

  • Want to put a name to your emotions → Go to “Investment Psychology Dictionary”

  • Want to organize how to take in the news → Go to “News x Investment Psychology”

  • Want to organize your perspective and way of thinking about the market → Go to “Organizing your investment perspective”

  • Want to take a break for a while → Go to “Investment x Rest (Extra Edition)”

📖 Regular Series

  • [Investment x Psychology]
    A record of the moments when I was realistically wavering and what was happening in my head at that time (e.g., when I can't cut losses, when my fingers tremble from FOMO, etc.)

  • [Investment Psychology Dictionary]
    Naming common psychological phenomena in investing, and briefly organizing situations where they occur / distortions / how to distance yourself (e.g., negativity bias, confirmation bias, disposition effect)

  • [News x Investment Psychology]
    A weekend article that records not just accepting the 'atmosphere' of the market for the week as it is, but how my heart reacted, what bothered me a little, and how I organized it.
    I value not just 'what happened,' but 'how I saw it.'

  • [Organizing Investment Perspectives]
    Articles that organize what to separate and in what order to look at things when faced with news and numbers.
    These are notes for organizing the 'order of thinking' and 'points to look at' before seeking answers.

  • [Investment x Rest | Extra Edition/Irregular]
    A record of time spent intentionally away from the market. Motorcycle trips, daily reset methods, etc.
    Talks on 'mental maintenance' to keep investing.

📝 Investment x Psychology (The Reality of a Shaken Heart)


Please use this as an entry point when you feel 'honestly, it's a bit tough.'
If you can read this and think, 'I'm not the only one,' that is enough.

・I'm quick to take profits but slow to cut losses—The disposition effect and how to distance yourself [Investment x Psychology]

・The day when only bad news looked big—Negativity bias and how to distance yourself [Investment x Psychology]

・Watching my cash sit still while the market rose—Guilt over idle funds and how to distance yourself [Investment x Psychology]

・The day I felt like a failure every time I had an unrealized loss—Self-denial and how to distance yourself [Investment x Psychology]

📚 Investment Psychology Dictionary (Naming Emotions)


A series where I name the 'habits' that appear during investing so that you can distance yourself from them.

・Investment Psychology Dictionary: Negativity Bias—Bad information lingers strongly

・Investment Psychology Dictionary: Ambiguity Aversion—The brain's tendency to avoid 'not knowing'

・Investment Psychology Dictionary: Survivorship Bias—Judging the whole based only on visible success stories

・Investment Psychology Dictionary: Framing Effect—The brain's tendency to change judgment based on 'how things are said, even if the facts are the same'

📰 News x Investment Psychology (Weekend Review)

I record not just following the news, but how my heart moved, what bothered me a little, and what I looked at first.
・

What bothered me a little during the week the Bank of Japan didn't change interest rates [News x Investment Psychology]

・What bothered me a little when the dollar-yen hit the 160 range [News x Investment Psychology]

・What bothered me a little during the week when even defensive assets looked unreliable [News x Investment Psychology]

・Surging Crude Oil and Chaos in the Strait of Hormuz: A Mind Pulled Toward the Worst-Case Scenario [News x Investment Psychology]

👓 Organizing Your Investment Perspective

To avoid panicking in the face of news and numbers, this is a summary of how I categorize things and the order in which I view them.
・

7 Indicators I Check Every Morning: The Order of My Morning Market Check [Investment x Psychology]

・The Order I Follow in My Head When Looking at News About High Crude Oil Prices

・The Easiest Way to Choose Stocks

🏍️ Investment x Rest (Mental Reset) *Extra Edition

Episodes where I step away from the market to wash away mental noise. Extra editions, posted irregularly.

・I'm a Honda shareholder, but I ride a Kawasaki. Riding the Bandai-Azuma Skyline: A Travel Diary of Martian-like Mountains and Autumn Winds [Investment x Rest]

・Ergohuman Pro 2 Ottoman: A Chair That Gives You Unrealized Gains in Your Back [Investment x Rest | #ThingsIBoughtAndLoved]

💬 Lessons Learned from Readers' Voices ▼

I feel that comments are“wisdom from the field.”There are many voices that have left an impression on me.
If you'd like, please take a look at the comment section along with the main articles.

You might encounter perspectives you wouldn't have noticed on your own.

To everyone who left a comment, thank you.

🧭 Self-Introduction: The Person Writing This Note ▼

In Closing

The market won't run away.
But, your mental stamina will.

This is also a rest area to help you recover a little of that stamina.
Please feel free to take your time and start wherever interests you (^-^)