What he said. Those are extremely general and basic questions, and up to personal preference. For my soil plants, I grow them a month or two, then sex them. There are lots of ways to do this. Search preflower or presex, or just take cuttings from each, then when they are rooted put them under a 12/12 light schedule. Make sure to mark which cuttings are from which plant. For harvesting, you could veg them for several years, then flower and get a ton, or go right to flower from seed and get a little. I like to veg for at least a month, usually 2, while topping or LST or both, at least once.