Blow dry?

Hi! I started my wavy hair routine a couple of weeks ago. Right now, I use Cantu cream, mousse, plop, and air-dry, and pray. Sometimes it looks good, sometimes meh, and sometimes I just need to wear it up. My problem is that I walk to work/school in the mornings, and now it is too cold to let it air-dry. Before, when I used to straighten it every day, I would shower, blow-dry, and straighten it. Now, my routine takes longer, and my hair is wet when I leave the house. What should I do? I can't wear it wet in this cold, but I don't want to straighten it again. I feel like diffusing my whole head would take forever. Do any of you guys completely diffuse it? How long does it take? What are the results? Washing it at night is not an option for me as I work out in the morning.. help!