Reversing a plant yourself is not as complicated as it sounds, though it takes patience and a separate space to avoid stray pollen. The chosen female gets sprayed during the first weeks of flower until it forms pollen sacs, and that pollen is then applied to another female. A general walkthrough of the timing and the isolation steps is available at https://queenfeminizedseeds.com (https://queenfeminizedseeds.com) without pretending it is a beginner project. Expect the first attempt to produce fewer seeds than you hoped.