If your teacher said that it's inappropriate to begin a sentence with a conjunction such as "and" or "but", he's wrong. There is nothing wrong with it. A complete sentence is a complete sentence whether it begins with "and" or not. Remember never to use sentence fragments in formal writing, any sentence fragment is incorrect. "Over by the barstools" AND "And over by the barstools" are both incorrect. Just make sure not do start too many sentences with "and", or your writing might seem too choppy.
My wife has a problem with being dry so I need to lubricate myself before sex.
so who cares that you need a a sentence begging with so
"Thank you for being so patient." That is correct.
No, you do not always need to put a comma after the word "so" if it is the first word in a sentence. It depends on the context and flow of the sentence.
you need to give me an explanation for you being late from school
you need to give me an explanation for you being late from school
need more info. i just need a how you describe being adult who you call adult
In the sentence given, mom does not need to be capitalized. However, you should write it with: goodbye to his mom.
i had to expiate for being expedient and so i expatiated
Hyperbole means exaggeration so you are being asked to exaggerate in your sentence.
No, you cannot start a sentence with "no" unless you need to do so. No reason exists not to start a sentence with that word, as you can see. No one will care if you do start a sentence with it.
I need to kneel down so I can get my shoes.