m0useanswered grow question 2 years ago Top Vs FIM
Topping is removing the entire growth node, FIM'ing is removing 25-50% of the new growth node and leaving some of it behind.
I don't see anything being left behind, I would say you Topped this plant not FIM'ed her.
https://2fast4buds.com/news/topping-vs-fimming-which-is-best-for-your-autoflower
Give it lots of light and love and hope it recovers in time before it enters flower.
Autos tend not to like getting HST techniques done to them, I have done it in the past with mixed results. Some stains with longer veg periods are OK. other with shorter ones not so much.
Good Luck!