Dear Pistachio,

For both of these things, as long as the other account will still be open, you should be able to transfer them quite easily. If you are on computer, you should be able to open the "Settings" menu on Google calendar and export your calendar from one email and import it to another, or figure something out under "Add calendar". As for Google Drive, the way that I would do it is put all my files in one folder and then share that folder with my other drive. The other thing that you can do (and I don't know which will take more time) is to scroll all the way down so that all of your files are showing from your original Google Drive and hit 'Ctrl/command+A' to select all the files, then share those with the other drive. If both of those don't work, feel free to reach out again and I may be able to think of something. Otherwise, usually the Google support is pretty good.

-Spooklings