you are missing the point on the 2 plants part bro. you should have at least 1 backup plant as it doubles the chance of getting a female. Another reason i failed to mention is that, like you said,you are new to growing. what would you do if you screwed up this 1 single plant you are planning on growing and didnt have a backup plant? you'd be fucked. lol. I really really really STRONGLY suggest you go with at least 1 backup plant. You dont have to grow them all out. Yes, 12/12 for flowering.