NO! But… It is hard to become a good web developer.
It takes a lot of time to develop the necessary skills to become a good web developer. There is a lot of technical work that goes into the development and maintenance of a quality website, and this is something that can’t be attained in a short time. Professional web developers will typically have a degree or some form of qualification for the profession if not a vast amount of training and learning.
Whilst there are many ways to make a website and many will have a momentary positive end result, best practices are often missed and flaws appear without the proper experience.