Yeah sorry ,just very frustrated !!

I'm a novice , its my first grow ... im doing what people say but nothink seems to be going right , i have these in a grow tent temp stays about, 84-86, to hot?? , at first they looked very pal but as the days past they started to look a very pal yellow in the middle, then a few leave started to get yellow lines running down the middle?? then the odd yellow dot was showing with a speck of brow round it?? And for the folding leave's .....they only go down after a good few hours of light , when the light goes off they look very poorly but when the light goes on after a few hows they stand up ???? and then again! after a few hours under the light they drop again ?? cant work it out. And what do you mean by dificency please ??...