(https://www.nyip.edu/images/cms/photo-articles/retain-the-spirit-of-an-amateur.jpg)
Avoid categorizing yourself with labels, or engaging in debates that seek to define terms such as "professional" and "amateur". A good photographer is not concerned with these phrases, but rather focuses on their craft. The word amateur does not imply a lack of skill. The actual definition is "to do something for the love of". This is the spirit that all professionals should strive to retain throughout their career.
Those with true knowledge understand how much more there is to learn.
Source:https://www.nyip.edu/photo-articles/archive/retain-the-spirit-of-an-amateur