cut by mistake

Hi sosispaniri! This could lead to great success! You performed a topping, which will result in two nodes growing instead of one in the place where you did the cut. Read more about FIMing and topping here: https://www.growweedeasy.com/topping-fiming Good luck with your project, I wish you all the best! 👽

Hard to tell without comparing your clipping to the rest of the plant. As long as the plant lives and you train it, you really shouldnt lose anything in the end, except maybe time.