I am amazed that the NHS allowed you to have those amounts. I was prescribed it a few years ago to help me get over a trauma. I was only given enough for a week at a time and only for 3 weeks. Being a addict I naturally wanted more but my GP was adamant that she would just be giving me more problems by allowing that. In hindsight I am glad but at the time it felt unfair.
So pleased you have got the help you needed to taper and finally stop.
Well done!