When should I start lst? I'm 20 days in and growth seems great. Sorry for the newb question

You can do it right now if you'd like. Most of the time I personally like to top once then LST after that.

Thanks for the advice! Woke up today and she looks super happy and seems to be growing faster and faster. I'll be starting lst in no time.

Looking good so far. I waited to start LST on my first grow until the main stem was long enough and strong enough to gently bend and tie down to the side of the fabric pot. I would wait another week or so starting.

That's a nice looking girl! I would give her another two inches or so before starting LST. You want to make sure there is enough stem for a gently bend.