my first plant

bad new guys there has been damage done to my plant and im not sure what it is, i think its a burn , although it might be from the food im not sure ,please help me and is it curable and how? thanks alot

cmon guys i really need some help

looks pretty ghetto, just like mine! come check it out!!

Yeah man those are babys they dont need any food what so ever. just water with your straight PHed water and wait for a while. your soil should feed for at least a month or two then you start feeding, but you have to start out at quarter strength with your mix. and slowly work them up. be paitent with them. some guys have set ups that throw buds in 2 months. you dont. read up on my man 5HIT he deff knows his shit.