Flowering questions

Im growing outdoors i only ended up getin one female, im a week or two into flowering, i dont expect much from it, it autoflowered, and i have a few questions

1. for the past few weeks the lowest leaves always die so like half the plant is just stem. is that sometimes normal during flowering?

2. a few of the white hairs have turned brownish already is that bad

3. how long should i wait to harvest?

what do you mean it "autoflowered"

i went outside and it was flowering on its own one day and its not even the right lighting sched

in nature things grow not according to light schedule, but also its environment. unless it flowered in like june july, then its probably just starting its natural reproduction cycle.