I agree with always changing, you're very brave in taking the first step in recognising you have a problem and that you want to do something about it. Do you have a GP, counsellor or other health professional you could talk to? That would be the next place to start looking for extra support. My GP, counsellor and psychologist were all helpful and non judgmental in response to my addiction.

Detox and rehab may very well be necessary, but access is different in different countries and states. A health professional should be able to figure out options with you.