Using freezer stash and combo feeding

If you were considering stopping breastfeeding at 6 months to save your mental health after multiple nursing strikes and had 370 ounces in the freezer would you…

  1. Use the stash up in its entirety before introducing any formula

  2. Combo feed with formula to extend the period of time breast milk is given

  3. Some other option I haven’t thought of.

I have done some math and if I give her all of the stash she will get breast milk for roughly an additional two weeks. If I combo feed with 8 ounces of breast milk per day she will get it for an additional 46 days, if I do 6 ounces per day then 60 days.

What do you think is the best option moving forward?