hi mary beth, writing songs is about what you feel and the way you think about what you feel. the words you use to describe that feeling can make or break the song? no, not really! songs have so many elements, fine words are just a part of the whole thing. a good melody line and a commercial sounding tune, then add a strong chorus with sing-a-long ability. easy....no. some of the best songs ever written have never been committed to record. they may still be in your head. dont worry about all that stuff. write what's in your mind.
phill
ps. as far as bob dylan is concerned, my favorite track by him is on the travelling wilberys album, it's called "tweeter and the monkey man" great story, great melody and performed by some of the biggest names in music history