Hi Vejar
It must be very hard for you to see how your son is living his life. You should feel proud that you have supported your family so well and are right to feel that he is trying to blame you for his bad choices and .
It might help you to talk to someone who knows what you are going through. The Icarus Trust is a charity that could provide you with an experienced trained volunteer who you could talk to. They have lots of experience of supporting people who are having to deal with addiction in their family and can help you by talking or by signposting you to other help if you need it.
You can contact us on help@icarustrust.org or visit the website http://www.icarustrust.org
This is a free service so it might be worth giving it a try so you can have some help and support for yourself.