I can't see my Google Form spreadsheet in the dropdown
Google Form responses need to be saved to a Google Sheet in order to work with Zapier.
To resolve this, you'll want to adjust where you save your Google Form responses using this guide and ensure they're saved in a Google Sheet.
The Google Sheet will then become selectable in the dropdown when setting up your Zap.
My trigger is not working and shows the error "Quota exceeded for quota metric"
If you see this error with a Google Forms trigger, switch the trigger to Google Sheets, and select the spreadsheet where the responses are stored.