Drug Rehabilitation Needed

I am at a point in my life where I realized I urgently need help, I have attempted to do this on my own at home, but has been unsuccessful every time so far. I do have a problem with my drug addiction and I really need professional help from a Drug and Alcohol Rehabilitation center. That would be my last hope to turn my life around and make something of my life, that is what I truly want more than anything else, I have a 10 year old son who looks up to me, and I feel like a huge disappointment and a failure. I want to be the best father I can possibly be for him, and I want to make him proud. Most of all I want to be proud of myself and prove to myself and everyone who knows me, anything is possible. Unfortunately Rehab is very expensive and I will never be able to afford it on my own, as they require monthly payments in full, which is just over R10 000 per month. I really want to quit, get clean and sober and stay that way, I want to turn my life around, and not being able to afford to get the help I need, makes me want to lose hope, and I don't have Medical aid. This is the reason why I decided to come here and ask for help, if there is anyone who could find it in their hearts to assist me, if I lose my hope, I lose the fight already, the little hope I still have is all I have to hold on to.