Doesn't seem that unusual to me namnoc ^ pretty common here in the us. not sure why he would lie and not sure that's very constructive.
I would cut out opiates first. your habit isn't that bad. just use some lope and double up on the gabapentin for a while. you have the comfort meds you need. you can do the opiates pretty much cold turkey, but a taper isn't a bad idea. kratom is pretty good for tapering as well. a step down at least.
cut out the gabapentin next, then the benzos last.
depending on how long you've been on the gaba, it could be a real pain in the ass. I've been on it four years and its been pretty hard for me to taper off. some people have a harder time than others. if it gets bad though don't rush it. you can destabilize yourself for a long time if you do.
the basic gist is 10% a month for most medications. the next month would be 10% of the last dose not the original dose. yes, this can take some time, but believe me when i tell you its worth it to not rush. you can do even smaller cuts over a shorter amount of time sometimes called microtapering. microtapering is a great way to taper. super small cuts and a nice round discontinuation curve. easy on the body and mind but requires more effort. there are various methods for doing this. volumetric dosing, counting beads, mg scales, etc.
do what works for you. always wise to follow the advice of your doctor, but some try to take you off too fast. if you do have problems its ok to go slower than what he/she tells you. withdrawal symptoms should remain minimal and you should stay functional. always keep it simple and keep your doses steady. rehab isn't a great idea. you can't rapid detox off of all of that stuff in that short amount of a time. it could take you a year or two to do it right. its definitely worth it. I rushed a taper and am still paying for it almost a year and a half later. some of my symptoms prob won't go away entirely. it was from anti-psychotics though so different beast. dont underestimate gabapentin. its a real bitch for me.
benzobuddies has some taper plans that you can use for the benzos or use the ashton method. I would cancel out the redundancies (xanax) first and just use a higher dose of klonopin or valium. low dose seroquel for when you need it for coming off of benzos isn't a bad idea. just when you need it though don't want to pick up another dependency. DO NOT start fucking with phenibut while in withdrawal. esp benzo wd. gaba A and gaba b drugs is a terrible idea.
survivingantidepressants is a good resource as well. make an account and start a thread in the member intro section.
of course, run this by the doc first but honestly i don't even care what they tell me bc the ones ive dealt with are complete idiots when it comes to getting people off of drugs. ive had to learn the hard way and figure it out on my own. just my own experience.
beligerent drunk, i think gaba isn't super harmful but in ADD there is a few threads that have me concerned about synaptogenesis and preventing neurons from forming. i think this is from more long term use though. after four years, there is def some brain fog and difficulty learning, kind of a dumbing down for sure. not really a fan anymore. that and when I try to quit it flares up a lot of my other symptoms from stopping another drug. right now it seems impossible for me to get off of. there are most definitely some horror stories out there, but not as bad as other meds. I would prefer to quit benzos over gaba honestly. but im a lucky one that is sensitive to a lot of withdrawals. I wouldn't recommend it for daily use for very long.
best of luck man.