I like the repetition of the last 2 lines in each Stanza. It really emphasises their meaning. Can relate to those specific lines too.
Very well done, you should keep writing you've great talent. But, be careful not to force rhymes out. Usually, you can tell when a writer's done it. Perhaps try to write a none-rhyming poem. That way you can put across your emotions, without having to compromise your thoughts because of rhyme. Just a suggestion.