Addcition to any drug can be treated. It needs you commitment and devotion.
As you already told that you have addcition to so many things and you have controlled your addiciton to all that and right now you are having spasmo proxyvon
Spasmo proxyvon has a component of opioid
drugs to which morphine
belong and that is the main reason for the addiciton. But the addiction to spasmo proxyvon is more of psychological type than physiological type. This is becuause the component of opioid in spasmo proxyvon is not that much addicting as that of morphine and so more of sychological addiction is there.
And for psychological deaddiction, motivation and firm believe is required. If you are really ready for that than you can stop taking this drug and in some days you will be alright without any medication required. The most important time is only the first few days in which you have to control your temptation and after that you will be alright.
As far as the your life is concern, definitly addiction has very bad effect on health, but once you are out of it and improve your life and life style than you can be alright. There is no definit study or data which show that this type of addiction will shorten your life.
So be happy and try to get ride of these bad habits and lead a very happy life.