If you are seeking to reserve a week at your home resort outside of the season in which you own, you can't do it. You must reserve a week in your season and then try to exchange that week for the week you want. Most people try to exchange through Interval International.
There are a few resorts that allow Platinum Plus owners to reserve a week in the Platinum season, which isn't a season that they own. That would not apply to you, as it appears you own in either Platinum or Gold season, depending on the resort.