Small Automation on Mac via automator

I have created an automator app for Mac that does/should do the following:

a. I want to dedicate a specific folder, in which I save certain documents I create in Mac OSX.
b. and these files should then be automatically sent by email to the dedicated address,
c. The Mail program should then be minimized/hidden again
d. and be erased afterwards automatically from the dedicated folder again, so it is empty.
e. be erased from the sent items in Mail.

So all that is left is Part d. My work is posted in the attached image. Can you help me with that?