There is something else to consider when it comes to whether this really is a success or not. Time. The short-term win is potentially a longer-term fail (or learning experience…). You probably have an experience or know someone who thought something was a success that turned out to be something they’d rather they didn’t have to deal with.
So what’s the point to this post. Be openminded about your successes and ‘learning experiences’. Of course, celebrate the short-term wins. Also, keep one eye on the future to spot the evidence of what once felt like a win turning into something that falls well short of what you want. And then take action.