it is a matter of (doing something)

What is important is (doing something). It's a matter of sticking with the program in order to succeed.

Name	Pronounced	Usage
Hebe	HEE-bee (English)	Greek Mythology
Sands	[sændz]
Mable	MAY-bəl	English
Lyubochka	-	Russian, Ukrainian
Bertina	bər-TEEN-ə	English
Oluf	-	Danish