You can save yourself from the emotional rollercoaster of waiting to hear back about a job interview by setting up filters in Gmail that automatically delete, archive, or move unwanted marketing emails into specific folders. To create a filter, you can directly from an email, use the search options, or go through your settings. You can then specify what actions to take on incoming emails that match certain criteria, such as deleting them, archiving them, or moving them to a specific folder. Additionally, you can set up filters to apply to specific senders, domains, or keywords, and even create separate inboxes for managing multiple Gmail accounts. By using these filters, you can keep your inbox organized, minimize distractions, and reduce stress.