On what level or when can you consider yourself a professional in Photoshop or other Adobe softwares?

But you can be an Adobe Evangelist instead of professional..

ther is no level to be professional.

all adobe softwares is just tools to Sanitary to reflect your inside creativity 

the professional to arts it depending on the artist not the tools

Your work (Portfolio) should determine your level of professionalism not your years of experience.

Regards

It does not depend how professional you are in tool rather depend on how professionaly you use the tool.

whether you know each & every command in photoshop or not but what is the outcome of your work & it doest reflect professionalism in your work or not