The Er would be able to help you with your inability to sleep, many medications they could give you.
I have gone a few times in the past because I had gone 4-5 days with virtually no sleep and all meds I had weren’t helping. I know one time an Er doctor realized how desperate I was for sleep and gave me a dose of morphine as my benzo had no effect on my being frantic and twitchy from no sleep and a larger dose IV of Ativan “ I think” there is a benzo called Halcion and it will knock you flat out, it’s not prescribed often although my Pdoc has me on it fir a couple years at one point.
Of course my husband was with me, no way I would have been safe to drive there and legally they can’t give you those meds knowing id need to drive.
Could your parents help you if you just can’t function any longer with no sleep ? Maybe stay with them for a few days ? I know it’s helped you in past to not be alone.
I so hope your able to sleep tonight and it be a deep restorative sleep