On your next run try starting your LST training earlier in veg. Usually around the 4/5th set of true leaves.
Youve done nothing wrong it just helps to bend and shape the plant in the earlier stages and continue as she spreads out. Dont get discouraged, your doing the right thing askin for help. Folks here sometimes forget they weren't always Master Growers when they 1st started.
FF OF is usually good with no added nutes for about the 1st 3 to 4 weeks. I generally when I used
FFOF started ferts around 30 days.
Another suggestion that ties in to me suggesting you start LST sooner is it will keep your plant lower and wider as opposed to stretching as with your limited resources/lighting intensity starting earlier and having a more squat gal will allow you to keep the cfl's closer to the canopy.
Anytime you get stuck reach out and remember the only dumb question is the one you dont ask. I will assist you in anyway I can without cracks about your paint job or tucking her in. I dont tuck em in but I do rub my galz stems every night before bedtime LOL