If your portfolio is exciting, it may be too risky. Index funds have their own risks and should not make up 100% of everyone’s portfolios. But they are popular for very good reasons. Adding a regular, consistent amount to your investments is called dollar-cost averaging. This is a solid strategy for building up an index portfolio from zero over time, even during a market downturn.
And if you can achieve market-level returns at rock bottom costs with instant portfolio diversification, why would you invest any other way?
Index funds are just one way you can diversify your investments, which is one of the surest ways to weather stock market volatility. For most, index funds should be a major part of your investment strategy.