Before you start taking a relatively potent drug like Buspirone, which has its own host of side effects, first give yourself some credit for being free of benzos for so long.
Then, try taking some Kava-Kava alcohol tincture, preferably one made strictly with stems and roots (like HerbPharm), since the leaves are hepatotoxic. It helped me taper off the benzos the first time and I used it as needed for anxiety and to stay off of benzos for about a year. Just 40 drops, a single dose, was more than enough, although sometimes even 10-20 drops worked, as well.
What did you eat today? Slow-release carbs like oats or whole grain bread? ~30g of protein with each meal? How often do you eat meals? How much exercise did you get this week? How many minutes a day on average? Do you take 10-15 minutes off from your day to engage in mindful meditation? How many hours of sleep a night do you get on average? What's your caffeine intake like? All of these things matter more than you can imagine when it comes to both anxiety and depression. Drugs are not always the answer, and can make things worse in the long run. Your best bet is to address simple sleep/exercise/nutrition/mindfulness issues and see where you're at, then if that doesn't work then you can always get yourself prescribed some drugs. You owe it to yourself to explore all the options, however.
