I don't think any score means happiness is over! People have difficulties and limitations. I think you get a lot of happiness in self acceptance and doing the best you can. Your score is only medium, not very high, but even if it was very high - it only means you have more challenges to deal with and maybe limitations that prevent you from doing some things - like maybe working - but it doesn't mean you are destined to be unhappy. I hope you will find some happiness every day.