How do I decide between paying off debt or investing money in my twenties?

This question sits at the heart of what I call rational self-respect. You're not choosing between two abstract financial products—you're deciding what kind of relationship you want with money itself. Here's what I've observed: if your debt carries high interest (credit cards, predatory loans), paying it off *is* an investment. You're earning returns by avoiding losses. That's reason working for you. But if you have stable, low-interest debt—say, a student loan at 4%—and you're earning 7% in a diversified index fund, the math favors investing. Yet the math isn't everything. Carrying debt creates a psychological weight that compounds in ways spreadsheets miss. It narrows your sense of possibility. So I'd suggest this: build a small emergency fund first (three months of expenses), then attack high-interest debt while also starting to invest, even modestly. Maybe 60% toward debt, 40% toward index funds. The real victory isn't choosing one path—it's choosing consciously, with your own values clear. What matters most to your dignity right now: security or growth? That answer guides everything else.