I bet, in your entire life, nobody has ever said to you, "it's good to be a quitter."
Consider today, the day you received some really excellent advice.
Being a good quitter doesn't mean using it as an excuse, and it should never be an option for making things easier. Instead, it's a wise choice you can make when your progress has you going around in circles, or stopped entirely.
And that's where things get interesting.
Once committed to an idea that is important to you, it becomes very difficult for you to allow yourself to quit. Yes, even if the proverbial writing is on the wall.
You can be stuck in a bad job, terrible relationship, destructive behavior, but your internal sense of "Identity" will compel you to stay to the very end.
Don't let that happen.
When your inner-voice begins to sound the warning, listen. There's no need to wait for the inevitable. Trust yourself and move on as quickly as possible.
I see a very good nights sleep in your future!