extremely slow growth

The main purpose of this post is to get an outside opinion for my options moving forward. I am currently growing 3 plants. One of the three is severely stunted under the exact same conditions as the other two. Seeing as it is only my second grow, I am wondering if it is salvageable, or if it is...

Hello again guys this is my 2nd post within 2 days so things aren't going as swimmingly is I hoped it would go for my first grow haha. Apart from Extremely slow growth, slightly upwards cupped leaves and purple branches. , yesterday afternoon i accidentally dropped my hat on the plant like the...