I would second lobster, I have been addicted to cocaine for the last 15 months (having a binge once a week), it crept up to twice a week at times. I have three children under 8yrs. My youngest is 2.5 also. I work, have a lovely husband, naice home, naice area of London. Good friends and family. I have no idea why I do it, I stopped enjoying it months ago. I also get the most awful comedowns.
I have gone through periods of thinking I am a fuck up and a bad person. I don't believe that any more, I know I am a decent human being who has fallen foul of a terrible addiction.
I am starting a twelve step programme this week. (With Cocaine Anonymous) I tried for months to do it through sheer willpower and on my own, but it was impossible.
I hope you find the answer for yourself, there is help out there. You aren't alone 