Every technology problem has six questions: Purpose (why does this exist?), People (who uses and manages it?), Process (how does work flow?), Technology (how is it built?), Risk (what can go wrong?), Optimization (how do we improve?).
Junior thinking asks: 'how do I configure this firewall?' Senior thinking asks: 'what business capability are we protecting, who owns it, what are the risks, and what's the operating model?'
Train yourself to walk through all six on every project.