A trick I use for helping the yeast to activate is to put the required amount of milk or liquid into a jug and heat it in the microwave to lukewarm only - very important not to kill the yeast. OR I use half milk and add hot (not boiling) water to make up the required amount of liquid. I add a teaspoon of honey or sugar and then the yeast and mix it up. Let it stand until it froths up and then add it to the rest of the bread ingredients.