i am a newbie but I just had a respectable first harvest (just bragging a bit). I burnt the heck out of the top of my plant and when researching everything said as long as it is not broken in half this plant is so resilient that as long as you take care of it you can keep it growing. Tape it, fix the light fixture, don't throw off the lighting schedule too much, feed it and love it.
Hope that helps!