id keep going for a little, unless it's a super long flowering sativa..
Your not topping with your screen?
pick up some masking tape, or painters tape... painters tape is probably pricey though, pretty much the same exact thing.
Your going to want a roll, within an arms reach if your training branches down... when snaps occur youll be glad you have it, because you tape it up and 3 days it's holding itself together & 7 days later it's completely healed over
very little stress if you tape it as soon as it snaps