There are many people out there who have been through the same thing and can help you – the key is identifying resources that are specifically aimed at dealing with death due to drug addiction. A good place to start is G.R.A.S.P. (Grief Recovery After A Substance Passing), which is a national organization that offers help for families or individuals who have had a loved one die as a result of substance abuse or addiction. A list of their chapters can be found here.
Another great resource is Project J.O.S.H. (Journeying Onward Substance-Abuse Help).
Or email Oxy Watchdog. We are connected to a wide network of people just like you, and we can put you in touch with someone who can identify with your feelings and offer emotional support.