Blue Dream - amateur learning as we go

For the past 10-12 days she's been growing a lot both vertically and horizontally and added about 40% height (10.5" to 14.75"). I'm having trouble with the watering and have been both underwatering and overwatering. Those days there is little to no growth. 05/29 - she's 14.5" and underwatered. I decide to go ahead with repotting from 1 to 7 gal since I have better soil and drainage/aeration (FFOF, organic perlite). I spray diluted seaweed extract (which i just got delivered) on roots, give a little water, and she becomes undroopy in about 2 hours. The root system didn't look that developed so that worries me very much, but we'll see. I have the Fox Farms Trio of nutrients being delivered within next few days, as well as blackstrap unsulfured molasses.