Never underestimate your odds of building something that gets noticed. If you’re willing to be more obsessed with the problem than anyone else on the entire planet, your odds are honestly pretty close to 100%.

The best writing advice I ever received was "always write for a specific, real-life person". Don't write a blog post for junior developers, write it for your buddy Mark who started his first dev job last summer. Your writing will be clearer, more authentic, and easier too.