Sprints are essential to software development because they make underperformers much easier to fire. With long deadlines, a straggler can take their time and evade detection by management for months if not years, but with sprint commitments to which devs are held accountable on a consistent, fast cadence, stragglers can be easily found and eliminated.
Agile in the workplace is not for you, it's for management.
Any software process is for management. That said, you don't need sprints for that. It just looks like a monthly meeting with your manager, where they say they're disappointed in what you have so far. Then weekly meetings, and then daily micromanagement.
Agile in the workplace is not for you, it's for management.