I agree with motaman, when flower sets in by week 2, the stem and branches start to harden. You can still train them during the early flower, just make sure to not over-load the stress or the stem/ branch will snap. Your plant looks healthy. As far as advice, keep growing. Dont get frustrated if you mess up, it's just a plant😉Keep to a feed schedule and let the plant grow, dont chop too early, that's the biggest mistake new growers or "On A Schedule" grower make. Even dispensaries chop early half the the time.