I missed 10 volt energy needed yesterday, is there any way to get the last 10 I need?

I messed up yesterday and left myself 10 volt energy short of fusing black kyurem. I thought it was both yesterday AND today in the first place, but even then though I was 10 over, not 10 short yesterday.

Is there any way I can get the last 10 I need without waiting a year plus? Fml.