Most of your emotions will not come as the result of your immediate choices, but on a much longer arc of your long term decisions, so what you can do about them in the moment will be limited to mitigation, not outright control.
Part of maximizing your output is changing your tack depending on your mood. Managing your moods is like shifting a vehicle with a manual transmission to maximize miles per gallon of fuel as you navigate hills in several ways. When your mood is good, you’ll want to increase your pace. When your mood is poor, downshift as necessary to grit through as much as you can.