It is smart to turn off spell check. I hadn't thought of that, but I think I will try it. I often find myself using the *wrong* word and spell check doesn't help with that kind of stupidity.
principal/principle
compliment/complement
lose/loose
chose/choose
appraise/apprise
complacent/complaisant
Organization seems to be a strength with your writing. You do a good job of mapping out a plan and sticking to it.
When you say "hygienic" I know that you mean "healthy," but in English "hygienic" more commonly means "clean." "Healthy" or "wholesome" might be better word choices here.
leared proper techincs
I know that you wrote this without the benefit of spell check, but proofread and listen to the words in your head . . . learNed and techNIQUEs.
hr and after that 5 mins
Spell out the words "hour" and "minutes." You should also be spelling out the word "five," but that is nitpicking.
watching small children playing
It should be "play" instead of playing. I don't know why. I thought I would be able to explain, but I can't.
Good luck with the exam!