Keep up the exercising. I've kicked many different drugs, mostly Benzos and opiates, and exercise is key for many reasons. It is part of the holy trinity: exercise-diet-sleep, both for keeping you feeling good hour to hour and day to day, but will also help heal your brain and bring it back to sober homeostasis after that cycle has been ruined by adding exogenous drugs.
Also baclofen 10mg is almost nothing. Start low of course, but I would bet you end up taking more like 20-40mg 2-3x/day (depending on how bad your withdrawals and PAWS are) start with 10-20mg and see how you feel. I would also strongly recommend gabapentin. It is GABA-A like Benzos, not GABA-B like baclofen or phenibut, however I find it helps immensely with sleep and anxiety. I was also addicted to benzos and nervous about taking it but it works out fine for me. Some may disagree but I find 300-900mg a day is a low enough dose to help a lot without having much potential for abuse or significant withdrawals. I take 300mg every night and occasionally another 300 if needed. It is very subtle, which for us with addictive potential is perfect. It is prescription but relatively easy to get. If you only take it at low doses and only for a few weeks-months the risk of withdrawals is almost nothing. Once after being on 300-600mg for about 5 months I was out for 72 hours and barely even noticed.
Good luck. GABA related withdrawals are absolute hell. Take a multivitamin daily, exercise daily, and keep a schedule for everything, sleep especially. Eat at the same times, exercise at the same times, but most importantly sleep at the same time. Give yourself the same 10-12 hour window to get 9-10 hours every night. If you can't sleep, don't use electronics, either read, do sedentary chores/work etc. Try not to nap.
Personally I think all drugs should be fully legal... but if I had to outlaw a few phenibut would be one of them. It's effects are so minimal but the withdrawals are one of the worst. Just doesn't seem worth it. Compared to opiates with an overwhelming euphoria, it pales in comparison, yet the withdrawals can be just as bad, if not worse. There really needs to be widespread info on this shit, which is why I am a huge advocate for harm reduction teaching being in every high school.