I didn’t have a good experience w klonopin personally. It’s the benzo w the longest half life and is known for having a “hangover” effect that leaves you feeling drowsy and out of it. I much prefer Ativan (lorazepam) which does not have this effect on me.
If they said take as needed it’s not being intended for AP use. You’d need to be taking it on a regular basis, an AP wouldn’t work otherwise. Also, for seroquel to work as an AP, it needs to be around 300 something mg, just to give you an idea of how small the dose you’re on currently is lol. Nowhere near therapeutic level.
As for the drowsiness thing, it really depends on the person. For some people the drowsiness goes away after a time, usually after a matter of weeks. For some people, the drowsiness never goes away.