wanted ad: time machine

I have come to realize at this late hour that I would very much like to go back in time to the 27th of July to the moment I mentally told myself 'alright, this is it! this semester i'm gonna study consistently! no more last minute pimples from stress, could-have-been-avoided cramming sessions and major panic attacks whilst trying to take in a whole semester's worth in such a short period of time...'

and IF i could go back to that time, I would:

A. laugh and scold myself for having such a silly notion OR

B. actually put on my nerd gear for the WHOLE semester or at least most...

someone build a time machine please?