I'm a little confused about diference between: Live/life/lives

(Hi)
I'm a little confused about the difference between: live/life/lives. (you need to add an article here "the")

I think these words have different uses. (since "words" is plural, you need to agree with "uses" not "use")

I live in Mexico (no accent) and Julia lives in London.  (you have used the possessive "live's" just omit the " ' ")

In November, (you need a comma here because "In November"can be omitted and the sentence will still make sense) my friend Claudia and I (you were right to place the pronoun at the end but it is correct to say "I".  Think of it as I go to a concert not Me go to a concert.  The first way sounds right! The second way does not.)  watched the live concert of Ricky Martin.  (While technically correct, it would be more natural to say "watched Ricky Martin's live concert and here you need to use " ' " to show possession - it is Ricky Martin's concert)

Many people (people is already plural so the "s" is not necessary at the end.  In English we don't change endings to agree like in French and Spanish red house, red houses vs. casa roja, casas rojas)

Remember too that  "I live" is a short I sound  and "live concert" is a long I sound )

I'm a little confused about diference between: Live/life/lives