There's absolutely no reason to give up on this lady! The pistils are a good sign even if they are about a week or two early. She's probably going to give you a very good yield but that will depend largely on how you treat her...
Good luck!
i have grown some auto twice they both shown pistil mid week 3 and reached up 55cm to 105cm in the end so yeah this is worth keeping if you got proper environnemental condiions.
All the best & Happy growing