<human>: Today i had chemistry class, but not only class it was an exam. In each semester we write 2 which make 40% of our marks. That means that i spoiled 20% of my mark in this semester. 

Waking up, showering, going to school, having an exam... just normal here in our highschool. 

When i got to chemistry class i had no doubts that i could fail the exam. I was well prepared, had learned much about colors and their ingredients and even the hybridisation of glowing mixtures.

In each exam in chemistry we have to do an experiment. And that was were i failed, pretty much. Not only did i fail the experiment, the experiment was fundamental for the terms and reactions which followed later. I often do fail experiments, i know that but i thought it would be easy(my teacher said it would not be difficult). So i began to write down my name and soon we got split up to do the experiment. 

Once i was finished with planning i began, and this is the part where it gets funny. 

Before i was doing the test, many others did the chemical reaction practically, i saw their glasses, erlenmeyerkolbens and burners.

The chemical reaction which i had to do was to

add bromthymolblue + 10ml dest. water                  | shake ; add NaOH or HCl
and now see which color comes out.

Guess what. All students except for me got red or blue fluids. And i fucking got a black and  yellow fluid. Do not tell me how i got this. Just sucks. I still find it funny.

Can you condense the text into three sentences or less?
<bot>: Used right chemicals, performed experiment like everybody else, still got bad results. Maybe flasks were spoiled by other chemicals. No one knows.