Whatever you do, don't expect these huge buds you see in photos to come out of this plant. I usually wait until I see 50/50 red hairs and white...I can tell by the smell which is hard to describe here, and the look...you could harvest now and get good stuff, or wait and no nitrogen, add potassium etc...see if it don't get some weight. My not happen tho...either way if this is your first plant, you did well and should have at least some free bud.
Green Outlaw
Canada