Military expansion. The Rashidun Caliphate expanded gradually; within the span of 24 years of conquest, a vast territory was conquered comprising Mesopotamia, the Levant, parts of Anatolia, and most of the Sasanian Empire. Unlike the Sasanian Persians, the Byzantines, after losing Syria, retreated back to Anatolia.
1 And the nature of this reality again can neither be consistently represented as a fixed and hard substance nor as an unalterable something, but only as a fixed order of recurrence of continually changing events or impressions.
Be realistic. Consistency is a fantastic trait and one that you should definitely work to cultivate. Remember, however, that it's a trait that can take time to practice. You won't be perfectly consistent right away. That's okay! Be kind to yourself when you screw up.