At what point would you stop chasing more ETF income and start protecting the income you already have?

At what point would you stop chasing more ETF income and start protecting the income you already have? I've been thinking about this while building out my own income portfolio. Say you're generating $1,500–$2,000/month from a relatively small portfolio, with the goal of eventually living off distributions without selling shares. At what point does your strategy shift from "build more income" to "protect what I've got"? Do you keep pushing yield, start rotating into steadier income ETFs, reinvest part and spend the rest, or shift focus to protecting NAV once you hit a target? Curious if anyone has an actual number where that switch flips for them.