I can wire up most embedded projects without breaking a sweat now. But the second a job needs hard real-time timing or has almost no memory to spare, I feel like a beginner again. I read the datasheet twice and still don't trust my own answer.
More people experience this than they realize.
You've grown skilled at embedded work, but the tightest timing and memory jobs still shake you.
If this sounds familiar, the Library can help you find the bigger picture.