They are showing signs of female with the hairs just make sure the light only stays on for 12 hours any longer it will confuse the plant to switch back to veg and if u don't save it in time it will stunted growth for 6 weeks and then would have to worry about a hermaphadite
It could be stress from the light being too close, I do believe it is shriveling up due to heat! I have noticed by observing a lot that the girls don't like temps above 80 keep around 76. Also soil will feed plants so at first u don't need to go too crazy with nutes
Put more soil in there. Your plant started out reaching at a angle. When the similar thing happen to me and I put the soil higher on the stem and it worked. Good luck bro