Yes you can! Over whipping egg whites can result in your meringue collapsing or weeping beads of sugar once baked. The best way to avoid over beating is to ensure you beat at a steady speed and allow at least 20-30 seconds of beating time for the sugar to dissolve between adding more and try not to beat for longer than 15 minutes (this is around the break point, I’ve noticed). Unfortunately, you cannot repair over whipped meringue. But you can turn it into a baked Alaska!