Rubbish, you're not a plank at all. Live and learn. Planting seeds individually may not be efficient to begin with, but will probably work out for the best in the long run, won't it? I got lazy with my carrots and flung handfulls into pots. Now they're growing really badly, all squashed together and wonky. I almost wish I'd done one per pot! Painstakingly separating them and repotting them is driving me mad!