Total Noob - First Grow

She seems to be doing ok for another week. I switched to the HPS bulb in my light about mid-week, at this point still maintaining the 24/0 light cycle due to the cold temperatures. I upped the feed, but still sticking with the 1/4 of suggested amount and I also added the Voodoo juice back in for the start of flower and started with the Bud Candy. I got to admit though I am completely lost with this whole feed and water part of the grow. I think overall, in hindsight, I am using too much nutes due to some clawing I am seeing. It is the watering that has me stumped. With this plant it seems to be fine to go by the book, finger method, light pot and then water to run-off. But each one of my other plants are different. One the morning after my first feed and watering to run-off was very droopy. I thought maybe it was the nutes so I flushed her a little with straight water, still droopy. I let her dry till the soil feels dry to the depth of my finger, water again and still droopy. Reading online everything is pointing to over-watered so I let her dry and dry till the pot is feather lite, still droopy. Since the pot was definitely dry I gave her a little water this morning and I think maybe she looked a little perked up. But I am afraid to really water her because the symptoms look very much like over-watering. I'm just stuck not knowing what to do. Up until I fed her two weeks ago she was my most vibrant, healthy plant. I know this is not relevant to this plant but I'm just frustrated and had to vent. I know it is the need to learn to read the rhythm of the plant but it is hard to learn for me, especially since each plant seems totally different. Well for my overall grow that includes this Frankenberry, I'm down to one plant that I think I can say isn't messed up by either myself or the weed gods. :-(