My dough won’t rise!

First of all did you add the yeast? It’s an obvious suggestion but it does happen! If the dough is cold then the yeast will take longer to create the rise, so you need to allow more time. If you don’t have time to wait for the required rise then you can warm up the dough to get it going. Try a warmer position – maybe next to a preheating oven or in an airing cupboard. You could set the dough on a tray over a large bowl filled with a little hot water: the dough will absorb the warmth which should get it springing into action.