I belong to a machine quilting guild. Mostly professional quilters. As we were all introducing ourselves, the newbies kept saying things like "I'm not very good".
After we had all introduced ourselves, one of our officers asked the group for a show of hands of everyone who doubts the quality of our work. Everyone's hands went up.
There is always room for improvement in our craft, and always someone 'better' than we are. We are on a journey to improve ourselves, and it's a journey with no final destination.