Hi Maggie,
Yes it can make your life a misery and be draining too. My son has returned to prison. I do not know why but probably stealing in order to buy drugs. The thing is we must remember that they are not well. They have an addiction and in my sons case mental health issues bought on by abuse. I have to work hard to breath and separate his behaviour from myself and the boy that was brought up in a loving home environment. I just keep hoping that there will be more support for families as well as the addicts themselves sometime in the future and would like to join or start a group to help ourselves realise that we are not alone or to blame. Take care. Ali