A single pollinated female can produce several hundred to a couple of thousand seeds, depending on her size and how thoroughly the pollen reached the flowers. Partial pollination of a few branches gives maybe fifty to two hundred, which is plenty for a personal project without wasting the harvest. Yield estimates by plant size and pollination method are tabulated on https://breederregularseeds.com , and they line up with what I got from a medium indoor plant last winter. Seeds need a good four to six weeks after pollination to mature.