Thanks for reaching out and welcome to the community!
We're going to back up everything @Wanderer said except that we will do it, sadly, without the excellent pun. At 5'6" you'll likely want a pole that is 110" long. Your best bet is to go with a pole that is adjustable so that you can change the length depending on the incline you are on. Here are a couple of solid options for you:
- Black Diamond Trail Trekking Poles - Women's.
- REI Co-op Traverse Trekking Poles.
- Leki Legacy Lite Cor-Tec Trekking Poles - Women's.
Poles that are designed specifically for women tend to not extend quite as long and sometimes have smaller grips. Both of which can save precious grams which can be particularly helpful on longer journeys such as the one you are taking.
Lastly, we recommend checking out this Expert Advice article, How to Choose and Use Trekking Poles and Hiking Staffs. It has lots of additional useful information about trekking poles.
Hopefully this helps, best of luck on your pilgrimage!