such a failure ...

... yesterday was Thursday, the day which we'll have practical class for Biology in the afternoon ...
... the class was on, and the experiment we were going to perform is about the respiration of germinating beans and crickets ... i've been looking forward to this for such a long time, and i was pretty sure that i could perform the experiment well ... well, based on the practical manual, the experiment is not hard to be constructed, so i had confidence in myself that i can do well ...
... and so i went to the biology lab full with confidence and all ...
... and my practical started off really smooth indeed ... grabbed all the apparatus i need, then i caught a cricket in the container provided ... well, it's just a cricket, nothing to be afraid of ... satisfied with my performance so far ...
... then i arranged my apparatus and started constructing the experiment ... yes, my cricket is still alive ... so far so good ...
... things started to go completely wrong then ... i waited and waited, but the coloured dye just didn't move ... IT'S SUPPOSED TO MOVE IN A FEW MINUTES' TIME!!! is my cricket dead or it is NOT BREATHING?! i checked on my cricket in the tube ... no, it's still alive! then what's wrong?? confused, i repeated the experiment again ... and the results i got was still the same ...
... not believing what happened, i asked for my lecturer's help ... and what she could tell was that i've arranged my apparatus wrongly ... alright then, then i did the experiment again, but this time with two crickets ... and FINALLY it worked!! ...
... getting excited again, i tried on the experiment with three crickets ... but again,the experiment didn't work out ... i just couldn't believe it ... all my classmates had finished most of the experiments!! i was the only one left!!! NOOO!!! why am i such a failure in this? that was really frustrating ...
... so i repeated the experiment again and again, but what i got was just failures and failures ... i couldn't take it anymore ... so i skipped the experiment and moved on to the one with germinating beans ... and BELIEVE IT OR NOT?! I FAILED THAT EXPERIMENT EITHER!! ARGHHHHHHHHHHHH!!!!!!!! i felt like crying ... i was tired of all these!! why can't i finish my practical?? ...
... at last, i gave up my experiment, as there was no time left, and my lecturer had to leave ... what can i do? what else can i do about this? ... oh, i only wished if my next practical will go as smooth as possible ... please ...