I would like to share with you a tip for brain reset before PM part.
You know how AM session can be tiring - probably 3rd am is the worst (I am candidate) so to be fresh for a 2nd part I can suggest Wim Hof breathing exercise - 2 sets should be enough
I was doing it for last couple of days in breaks between sessions and simple 15 minutes is resetting you completely.
you can check it and practice today and tomorrow on free of charge WHM app - there is one for android
https://play.google.com/store/apps/details?id=nl.deckeron.apps.innerfire
hope it will help you 
good luck
