Okay. 1st things 1st let's talk about defoliation. As that will play a part in how soon you can LST.
As your plant grows. It has 2 energy drawing points at each node point. The node itself and the big ass fan leaf underneath. Normally after, your shoot aka node can stand on its own. It's best to remove said fan leaf below it. As this will transfer that energy to your node(s) and will stop making big fan leafs. If you look at my Pure Instinto grows or GHS. I pushed it to the extreme and took all fan leafs early as soon as shoots were up. Growth was slow for a few weeks. But has made for the most even nodes I've had in a grow. Also defoliation can be used. If 1 node is growing taller than the other. You can slow the one that's growing quicker by removing some of its foliage to slow down that side, not the fan leafs, "it'll be more leafs on the node itself im talking about"....and if You take 1 fan leaf or leaf from a node, try repeat on its opposite side.
As for node LST. you're just not there yet. As I can see. Your plant is focusing its energy wrong and making big fan leafs. Remove them, "fan leafs", your shoots aka nodes, have enough leafs/foliage to kick start their own growth.
Generally you want to see a few inches before you need to start messing with them. I even tend to leave it until more near the flip. Especially with the new techniques I've been using, removing most of the fan leafs early on. Has made for a real uniformed natural node growth. That doesn't really need LST, 'yet.