Congratulations on kicking opiates! Especially without other meds.... I was addicted for 4 years to oxy and it took rehab and suboxene to kick my habit. Like you, the 12 step program wasn't my cup tea. Although some of their slogans still rind true.

You can fight this, one day at a time.

Also, try SMART recovery-- it's more CBT based and less stringent.