Seeds: Tiger stripes are always promising.
Your crop is used to an outdoor climate, but mj is easily converted.
Your lady(if female) needs to go into flowering soon given the light regimen allowed.
After flowering is induced, a 'stretch' period happens where they will double, and even triple in size.
You're growing bagseed and guessing by their genes, they will triple in size because they're used to outdoor climates.
Your node spacing looks appropriate and keep the lights as close as possible.
Flip that 12/12 and watch to see what happens before making anymore "life decisions".