i just seen some kid in a diff. thread with the same prob. get some fans blowing on the light to keep it as cool as pos. or look up super croping..that might help u!
You can bend the plant over by gently squeezing the stem and rubbing it to soften the fibres. you'll need something to support it until it mends itself. The cola will start turning back up towards the light and continue growing upwards, so make sure to allow for more vertical growth if you do bend it.