No, of course it isn't all gone.
This is life, real life. There will always be challenges and always be times when you think 'ah, bad decision'.
What you have been doing this last 5 months is strengthening your experiences of the 'better you' - the 'better life' - getting a glimpse of where you want to be, and enjoying it.
To the point where, hopefully like this evening, you will have enough of the feeling of that 'good life' in the forefront of your mind to make you strong enough to pour it down the sink, go for a walk... or post on here. And to turn again to your better, nicer, happier life!
You're doing it right now.
Life isn't linear.
You are living real life, not a play.
Well done on your five months, and well done on posting here as your reaction to that bump in the road.