The simple answer is that your meditation is working if your mind is more calm and more positive outside of meditation. You can catch yourself in mid thoughts and correct it if necessary. You can access the kind and patient side of yourself more easily. You are no longer surprised by how you got to this train of thought, but you can direct your thoughts and chose your thoughts rather than them choosing you. You’re aware of how you are thinking & feeling during the day. In short, you are more aware of the contents of your mind.St. Peepsburg at Ask Metafilter
I used to meditate regularly after the birth of our second child, and I did notice my mind being more calm and positive. As I then found also, meditation seems to be like a physical exercise where you want to be consistent with it, to keep enjoying the benefit. Things happen and I am not doing it anymore. And I can tell the difference.
With strength training, it’s possible to regain muscles that were grown, but are then lost after periods of no exercises. Now that our third child is here, I am hoping that those lost mental muscles, so to speak, are easier to grow back as well.