Lots of good advice here and I would like to add one thing... My pup was kind of sluggish or seemed more interested in playing and timid around water... a couple of friends helped me on this as well as other posts in this forum.
With retrieve drive--- a buddy of mine always freezes a few duck wings he gets over the season to use when he is working up his dog. He gave me one of these to work with my dog and all of the sudden she was more interested in getting that wing.
With the water--- I got in and called her out to me during the summer. when she came to me I told her she was a good girl. did this a few times and now I can't keep her out of the water.