Performance shouldn’t be monopolized

Throughout my past 6 years work experience, I had found it very difficult to continue working without formal qualification mainly because of certification. I had to give exceptional effort into my job (which is the main reason of my exceptional performance) to avoid any criticism in this regard. Though on-the-job learning process is a must for everyone, it is always a better option to try to obtain relevant credentials from the education industry for our livelihood. But it is wrong to prevent anyone having adequate potential to perform their level best irrespective of anything.