Methadone, alcohol and OD

[NoleGirl323]

Hey y'all..
SWIM has 'met' a few of you all before, so she appreciate all who have responded to her in the past.
Those who have read SWIM's posts know that SWIM's current drug of choice is methadone. SWIM has access to the 'waffers' I guess they are called - big round white, semi-flaky pills that are split into quarters. On the back of the pill it says methadose. Anyways, SWIM has been indulging lately, more that SWIM should. Although SWIM knows better than to use during certain times of day, SWIM doesn't seem to care anymore.
Recently, SWIM read in a local paper that a young girl was found dead in her apartment. It turns out that this girl (the decedent) was a friend of a friend. The cause of death was overdose. The deceased overdosed on a combo of methadone, xanax ,alcohol and tylenol.
Not only was SWIM extremely saddened by the death of a young girl, but SWIM was also freaked out because SWIM has a prescription for Xanax - 4 mgs per day, everyday. In addition, SWIM has .5 mg tabs as needed for breakthrough anxiety; Lexapro (40 mgs per day); Lamictal (200 mgs per day), and flexeril (10 mgs per day).
Not only does SWIM usually take the above meds, but SWIM is quite a lush. Given this combo, plus the methadone that SWIM has been indulging in lately, SWIM is concerned about methadone OD and how often it happens.
The incident mentioned above is the second time in SWIM's life that methadone was involved in an OD. The other methadone OD was with Anna Nicole Smith's son.. he was also on anti-depressants. This worries SWIM..
To make this short(er), SWIM would love any feedback about safe levels of methadone to take; safe meaning 'how much (in mgs) can SWIM take with her already prescribed, medications before she has to worry about OD? Currently, swim takes about 30 mgs of methadone per day + all of the prescribed drugs listed above, and alcohol. SWIM drinks about a half of bottle of wine per day.. some days go by that I don't drink, but usually I have some drinks.
You all have been wonderful so far in giving me advise, and if you have read this far than I thank you!
Have a great night, and y'all be safe!