With that in mind, deleting your Gmail account can be done in a few simple steps:

1. Go to: https://myaccount.google.com/ (this can also be accessed by clicking on the grid in the top right-hand corner when using a Google service and clicking the Account button).
2. Select Data & Privacy from the menu on the left.
3. Scroll down to the Data from apps and services you use section and look for the Download or delete your data box.
4. Click on Delete a Google service and enter your password if prompted
5. Before pulling the trigger to delete your Gmail account, it is worth considering whether you want to preserve the data. There will be a prompt at the top of the page prompting you to do so.
6. Click on the trash bin icon next to Gmail.