Playing unfocused

Today I woke up after 6 hours of bad sleep. I didn't feel too good and had allergies but I decided to load up tables. Played pretty poorly and ran into some big hands and lost a few buy in. I decided to go back to sleep but for some reason as soon as i woke up, i decided to play a session. I was running pretty damn bad but towards the end, I stated to tilt and lost 8 buy ins. I now realized playing a lot of hands per day is very very bad goal. I should only play when i am motivated and feeling well to play. Playing tired or sick is just a disaster. I am probably going back to my normal stakes of 5/10 again.