>I want all of those things and they sound so exciting to me, but financially, they seem near impossible to do - especially back to back. How do people navigate so many major financial milestones at once?

We managed by spreading these milestones out over time. We got married in our late 20s, had a kid in our early/mid 30s, bought a house in our late 30s. It gave us time to adjust our lives and our budgets to the new normal before we stepped into the next phase.

So I guess my advice is to do one thing at a time.