interdose withdrawal while on the med due to being at same dose for so long? and hope for recovery?

i have been taking benzos for probably almost 2 years now, like 1 year and 10 months perhaps. the first 4 or 5 months i took them, they were very helpful. but i got stuck on them. originally was on xanax but switched to equivalent dose of klonopin. they literally do nothing for me anymore, i used to take them and they really helped me get through the days, but now i take them and feel nothing. in fact, sometimes i feel significantly worse after taking them. i've developed really bad intrusive thoughts and akathisia and derealization. the akathisia started when i was on an antipsychotic, was really bad for 2 weeks but then improved, only to come back again 1-2 months later and persist for much longer. i fear/suspect that the reason the akathisia continues to persist is due to the benzo. but i'm still on it at the same dose, so i can't be having withdrawal from it not being in my system. could i be having interdose withdrawal while still on it since i've been on it for so long, or just straight up adverse effects from taking it for so long that aren't necessariley withdrawal? has anyone else had the same experience and been able to recover? i feel so brain damaged and my mental illness feels so aggravated/exacerbated and i'm scared since things are only getting worse.