Stop, do not worry, you are God's child. Rejoice in being here and able to work and be happy for the challenge of a difficult project. Look forward to the harder projects, it means you are worthy and it means you can do it. You would not have been chosen to do a project you are incapable of.
Stop worrying, stop second guessing and stop asking for validation.
I am great!
I am am confident!
and I can do it!