i am 18 years old, 5'6'', 123 lbs, and i am in the habit of taking 4-5 12.5 mg ambien cr a night. even when i take four, i don't really feel anything, so i take around 5 benadryl capsules to get at least drowsy. i'm also taking 100mg of zoloft, and 300 mg of welbutrin for my depression and anxiety. i don't know what to do. about a week and a half ago i went two days without it, and then i just couldn't handle it.