When I finished engineering and started my first job, that was the point where I realized that even with all the education that I was still bordering on clueless beyond the basic grasp of the workflow.
It really took about 2 years of work experience to develop a level of confidence and it was around 5 years of experience that I realized that I had developed an expertise in the field by having my estimation with basic information proved correct after thorough calculation.
When I finished engineering and started my first job, that was the point where I realized that even with all the education that I was still bordering on clueless beyond the basic grasp of the workflow.
It really took about 2 years of work experience to develop a level of confidence and it was around 5 years of experience that I realized that I had developed an expertise in the field by having my estimation with basic information proved correct after thorough calculation.