Besides dollar-cost averaging into BTC, I've also been regularly investing in ETFs over the past few years.

Many people think investing means researching individual stocks and reading candlestick charts, but for most ordinary people, there's a simpler approach: ETFs.
An ETF is essentially a basket of stocks. When you buy one ETF, you're effectively investing in many companies simultaneously, with more diversified risk and better suited for long-term investing.
If I had to pick just three ETFs for a basic portfolio allocation, I'd look at these three.
The first one is VOO.
VOO tracks the S&P 500 Index, which contains America's top 500 companies, like Apple, Microsoft, and Amazon—major tech giants.
To put it simply, buying VOO means you're investing in a batch of America's strongest companies. Over the past five years, average returns have been around 15%, and many people treat it as the core asset in their investment portfolio.
The second one is QQQ.
It tracks the Nasdaq-100 Index, which is the tech sector. It includes tech giants like Nvidia, Apple, and Meta.
If you believe technology will continue to boom over the next decade, then QQQ is essentially betting on the long-term growth of the tech industry.
The third one is VXUS.
VXUS invests in global companies outside the United States. Many investors only buy the US market, but VXUS can help you diversify your funds globally.
If the US market experiences volatility in the future, VXUS can also help reduce risk in your investment portfolio.
In simple terms, these three ETFs represent three things: VOO represents core US economy, QQQ represents tech growth, and VXUS represents global diversification.
For ordinary investors, often the hardest part isn't selecting assets—it's maintaining consistent long-term investing.