I Suffer From Extreme Hypersomnia During The Daytime Hours. Currently,

I suffer from extreme hypersomnia during the daytime hours. Currently, the only thing I am taking for it is Vyvanse because nothing else has worked. I won't be able to fill my prescription for a few days and I was wondering if there was anything I could take that will help me stay awake during the day? I can't afford to miss that much work.