Repentence is a life-style. There is always turning and mind-renewal and praying for those gifts. It's fun. Mostly.
I tend to associate repentence with a moment's decision to simply turn back to Him. Sort of like glancing away and looking at something else, but then thinking and deciding to look back at Him. Refocusing our thinking through faith in Him.
It is always possible to make a new start by means of repentance. "You fell," it is written, "now arise". And if you fall again, then rise again, without despairing at all of your salvation, no matter what happens. So long as you do not surrender yourself willingly to the enemy, your patient endurance, combined with self-reproach, will suffice for your salvation. "For at one time we ourselves went astray in our folly and disobedience," says St. Paul. "... Yet He saved us, not because of any good things we had done, but in His mercy". +Peter of Damaskos