Impressive buddy, teaching is the best thing a man can do, it is fun too.
If I may pmc, just a couple of suggestions as you your students look up to you as their source of improving their English, otherwise I, myself, make typos all the times.
- a 18-year-old-boy has to be an 18-year-old-boy
-i'm closely resemble my dad
has to be
i'm closely resembling my dad
or
i closely resemble my dad
-i'm not going to show myself up but
could be
i don't mean to show myself up but
-i'm the only one that have his
has to be
i'm the only one that has his
or
i'm the only one who has his
btw, u r done with women? think again;) or like an old man says: Never Say Never!