I really can relate as I am at the similar place right now - yesterday I was so happy after the session and today I am pretty hyper-arousal so I am just fighting with myself... I still haven't figured out why it is like that so when you find it out, please let me know...

Please try to take care of yourself, usually I calm myself down by imaging being on holidays e.g. On the beach with warm clean sea, little wind, hot sand etc... And that I am just a human, small human in the very big world - there is no sense in thinking that my life is so important that it is worth to worry about any problems tomorrow there is always high chance that it will be better though...