need help with my deathstar!!!!!

im a newbie at growing and need some help here. i grown a couple outdoors but this is the first
indoor plant i have done. she is about almost 4 weeks into flowering.leaves are turning yellow and
dieing off and leaves around the bud sites are small and deformed sort of. im using 400w hps, i
used miracle grow for soil which i herd was not a good choice so transplanted to some better soil.
that was like a long time ago though. i havent really given it nutes at all.i also believe i forced
flowered this one then i put it back to veg, i dont think that matters now but i stresses her out alot
i believe.
the pics sorry about
the light switch.

the more foliage uhave the more food it requires. i would remove any damaged leaves and anything that look like it might produce an airry nug. leave about top 15_18" of growth and remove the rest. then give it a real strng dosage of nutes....like full strenght or 85% at lowest. this will focus all the energy to the buds in the sweet spot of the light and taking away any competition between flowers for light or energy.

Do NOT give any full strength feeding. Do so and face likely nutrient lockout. You don't go from zero to 100.

i feed at full strength all the time(not every time) bro and other than a slight tip burn (occasionally on on my fan leaves that are trash come harvest) i have no issues. But then again my clones get 350_400 ppm after rooting so they are use too the strong food. My hydro ressy runs at 1500ppm or more. Its all about balance.