Is there any point in growing these or should I start again?

So stress gave the plant a hormone imbalance. U can tell that by the fact that shes still producing single bladed leaves 3 nodes up. Looks like the stress occured when she was making her second set of leaves. U can see she was trying to jump to 3 finger leaves but growth got funked. The imbalance could be genetic... just a bad offspring. Or a result of the extremely heavy feed ur giving to such a young lady. Givin it's a autoflower ur potential size and yield have been compromised. I personally would start over with the knowledge u gained from this experience. Not a loss just a lesson learned. It happens even to the best growers. With autos starting nutes early is great but do it at a quarter strength the recommended feed. Seedlings are very fragile and it doesn't take much to result in mutations and imbalances. Good luck to ur future grows fam. Everyone has to start somewhere dont let the bring u down instead rise up to ur challenge.