Rhetorical Devices

I am writing an english paper, a memoir actually, and I need confirming that I am correct in my identifications.
This is talking about riding a horse.
It was not the prettiest sight at first, but Doug was impressed with my ability to sit her. (Antanagoge?)
For weeks and weeks I walked around with heavy feet and an even heavier heart. (Metonymy?)
I knew I was on borrowed time with “my” horse, and wanted to spend every possible moment with her. (hyperbole?)
Thank you in advance; this is for the last paper of the year, and so I really need a good grade.