It’s a good idea to start training at least a few months before your trip.
It’s a good idea to start training at least a few months before your trip. Take long walks and/or hikes. Walking uphill is especially helpful as well as hiking with a loaded daypack to get used to that as well. Shoot for at least once a week at minimum. The more days you get in, the better. Try for at least one longer or steeper hike per week.