I just got back from my chest workout and am very disappointed in how it went. After my first exercise (incline bench press) i had barely anything left.

Yesterday i had a great shoulder/traps workout, couldn't have asked for a better session. Do you think this is why todays workout was so disappointing, indirect training the day after direct training?

I usually have a bad day in the gym like this once every month or couple of months, i'd be interested to know if you guys do aswell. Can it be avoided?