Suggestions? Wasted time cannot be regained. So...
Forget about the time wasted in the past. Indulging in guilt and regrets will take too much time and energy from where you are now. . If you have harmed or cheated anyone in your days before, sooner or later, you'll have to set that right as best you can. Be careful, though, to do it in a way that won't open old wounds.
In addition, if you were a drug addict, no doubt your body needs extra nutrition and exercise to rebuild it into fighting form.
Most important, stay close to Gurbani and Guru.Remaikn in chardi kala.
That is what this senior woman - don't you dare call me "aunty! - has to say.