Don't give up man.
I dont know know how many grows you've done.
im on my first...we even started our grows on the same day.
this is a learning experience. I've made a shit ton of mistakes, damaged my plants, almost let the reservoir run dry (only once though), fucked up the light cycle, over nutriented,
ive taken notes...kept my grow journal, and tried not to stress too hard over the end result.
ill know in about 5 weeks.
My suggestion is to figure out a way to support your colas from above.
And relax...whatever you get from the grow is more than you had plus the knowledge you've earned