I see the logic in your detox question and plan, and I'm not questioning that, but maybe there's another factor in play, either instead or in addition.
Digestive imbalance (even slight constipation or seemingly asymptomatic dysbiosis or a food sensitivity) can determine how many neurotransmitters you make, causing anxiety. Maybe the antibiotics impacted your digestive system. Clindamycin can cause thyroid changes, which can cause anxiety. Rarely, clindamycin can damage the nervous system.
Anxiety also can be a neurological habit. The endotoxins caused by die-off from the meds you took might have "flipped a switch," so to speak, and now it needs to be "un-flipped." Sometimes a rescue med (a benzodiazepine like Xanax or klonopin) is necessary on a very occasional basis, and sometimes just waiting is enough, but I think most people fall somewhere in-between. Fortunately we're often able to influence those neurological and adrenal systems effectively with actions, thoughts, and other voluntary interventions. Things that reset the systems that control anxiety (adrenal and other hormonal systems, nervous system, digestive system) might help you come out of this hard phase faster. I'm not saying that an herb, meditation, or tapping will fix the problem in a day, just that doing some anxiety interventions might prevent your body from getting stuck in that toxin-induced habit.
How do I un-flip the switch ? So clindo does that, I also ended up getting bacterial vaginosis because my gut flora and everything else was off