Sorry, I never used pie controls; tried it once and it seemed to be a pain for my normal operating flow, so I have no useful assistance there.
As far as the rest, it sounds like you didn't download a gapps package to install with it. It doesn't come with gapps (most AOSP ROMs don't). You have to wipe in TWRP, install the ROM, then install gapps. It will ask for your google login credentials immediately after booting. I use slim gapps, which you
should be able to download from here. I just use the mini package and install everything else from the play store. If you can't download from there, let me know.