First grow bagseed

This week I trained my plants using pegs, probably go with strings next time. I also think I pulled them a bit too close to the soil so I let a few go a bit to grow up more. I noticed marks on the leaves of my bagseed plant about a week ago. I knew I had a small gnat problem probably from overwatering a little bit after I transplanted. Couldn't figure out what was causing the marks because I have not seen any critters other than the small amount of fungus gnats. Caught something in my fly trap today that I set up the other day, it's only caught 2 things, a gnat and whatever else this is. I have used a bunch of random remedies for the gnats and bought some neem oil at home depot the other day, going to start spraying all my babies. Other than that things seem ok maybe a bit small but I'm still figuring out how to keep light to the lower nodes. They are taking quite some time to develop longer branches. Every pull I did the main stem would make or adjust its large fan leaves over the nodes. Think I might let the main stem grow a little taller for a day or two and try to fix it later. Also had it pulled so low that a leaf was touching soil. Watered the plant before bed one night and woke up to a shriveled leaf. You live you learn. Starting to smell a bit..