Lightroom CC: Export Issues, again

I am beyond frustrated.  I want to get an original out of Lightroom CC so that I can use Aperture to send it to a photo printer at a high enough resolution.  It would seem that, once an SD card is erased, my original is being held captive by Adobe.  Something  needs to be done about export options.
I am not a professional, I subscribed to Lightroom CC (the mobile one which I mostly use on my desktop) because I was looking for an alternative to Aperture and I thought it would  be a good thing to store my images in the cloud.  I'm happy with the photo editing process but lack of file renaming and limited export options have me searching for a new photo processing option.  I don't want to have to do that, it is way too time consuming.  Please fix this!!!!!