I would hack what is not growing right, and train what can be trained. It's still a baby rose, one year old. I wouldn't worry too much about hacking, shaping, cutting etc, if you do it in the right season :-)

If the canes are flexible enough to be wrapped even loosely, then wrap away. It will look strange at first because leaves are turned upside down and there are no laterals yet. Next June it may look wonderful.

If not flexible enough to wrap, then hack.

Thanks Scardan & Michael - I went out and gave it one more try. I think it looks halfway decent this time. I can't wait until spring!