Imposter Syndrome

All fields have some amount of imposter syndrome. It happens in Software Engineering a lot. Constantly changing technologies and changing projects can catch a person off-guard and overwhelm them. Often the problem is only in your head. You actually are doing fine, or would be if you gave yourself a chance. Peter J. Denning wrote an excellent article about this called The Beginner's Creed. The creed is all about learning to be expert beginners so new technologies and projects don't overwhelm us.