Translation of a japanese poem?

Question:

I read a book by Murasaki Shikibu and want to translate the following poem: "Though I flung myself into a torrent of tears, you wove a net to catch my fall." Here is what I think it is, can someone verify? 身を投げし　
涙の川の　
はやき瀬をしがらみかけて　
誰かとどめし

Answer:

If interpreted in modern Japanese;
涙からできたような流れの速い川に身を投げた私。
誰がその流れを止めて、私をたすけたのでしょうか。

I threw myself with tears
to a torrent, River of Tears,
Who could save me, giving a weir?

now, sounds better with rhyme?
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