You are not extraordinary case, and you are becoming one of long term investors who start as worried traders and end up as calm holders. Fact that you are not scared by small price drops anymore means that you have become emotionally mature and have replaced fear with patience. Taking Bitcoin as long term habit and not way to get rich quick is smarter game to play and will help build real wealth over time.
With different purposes and points of view, as investment or trading, people will have different strategies and actions in the market with their fund. They will also have different risk management that starts with how they manage their finance generally.
With trading, in the volatile and unpredictable market, it's hard to stay calmed and unaffected by market volatility, news from good news to fud news, and your actions will be highly volatile like the market.
With investment, if you start with good financial and risk management, your mind is calm, and your mindset will be for long term so that you will less likely be affected by news, fuds, and short term volatility either upward or downward.
You are right that Bitcoin is here to stay, since it is no longer weird experiment but part of global financial system that large companies use. Similarly to how internet became everyday part of life, Bitcoin is now entering stage of being handy tool in background.
Bitcoin changed the world, changed the financial sector, and it's truly a game-changer not only for this human generation but also many future generations.
Its future is very bullish and anyone who have yet imagined about it, the following book can give them many insights.
The bullish case for Bitcoin.