I'm still doing bad, almost 6 months off. Just looking for some success stories here. I was doing great, the first 3 months weren't even bad at all, but starting with my 4th month I started backsliding. Sleeping about 5 hours a night, anxiety is bad, can't concentrate, bite my lips all fucking day like I'm on meth. Anyone have withdrawal that lasted this long, and when did you start getting better? Would anyone recommend an SSRI?
Hey mate, first off, congratulations on almost 6 months off benzos. That's quite an achievement there! It never feels like it, but it IS possible to succeed with staying off benzos. I know exactly how you feel, and just today I am relapsing on valium myself.

My longest stint being fully clean off benzos has been 2 months in the past 5-6 years, and in some ways it was getting easier towards the end of that 2 months, but in other ways it was getting harder, due to extreme anxiety and lack of concentration, etc, as you mentioned. Everyone is different, but I think it depends on how long and what doses you've been taking will sort of give you a feeling of how hard it might be. But as I said, 6 months is a fantastic effort. And I thought I was good at the time being 2 months clean haha. I'm prescribed an SSRI myself, but only because basically I had to from depression/anxiety that just reached a really bad point. But if you're feeling mentally strong enough, I would steer well clear from SSRIs. If I didn't feel I needed to for my own safety, I wouldn't be taking them myself.
If you feel anxiety is playing a big part in giving you troubles (anxiety is always my main struggle), as
highhooked said, there are some herbal alternatives out there. I've tried some of these in the past, like kava, and they do have an effect. But probably more importantly there's a lot of other coping methods which you may already know about, like breathing exercises, meditation, etc. What makes it so hard with benzos though is how effective they actually are with helping anxiety, but in the long term medications aren't always the answer. Hang in there and good luck!