Yes. And No.
First of all, "change" takes MUCH longer than we think.
And people who "change" don't become totally different human beings.
They start by acknowledging the behaviors and habits that aren't serving them...
And they make necessary adjustments to better manage those behaviors.
But changing habits and behaviors isn't a one-shot deal.
It's a PRACTICE, and it takes time.
The more you practice something, the more likely it'll become a new habit.
Do it once, and give yourself a gold star. Do it again and you get another gold star.
Even if it's weeks or months apart, that's ok - did I mention it takes time?
Soon you have two, then three, then four, then five stars...
And voila! You have a new habit.
Keep going. :-)