So when I was in labor with Cambria, a technique that really helped me get through labor was to ask myself if I could handle one more contraction, don't worry about the next few hours, just focus on getting through one more contraction.
Today, while I was at Zumba, my body wanted to stop about 15 minutes into my work out (unfortunately, that's not uncommon for me... I'm not in very good shape). But I had an epiphany today! I asked myself "can you do one more song full out? Don't worry about the next 45 minutes.... just do one more song". Let me tell you what, it worked! I did a full blown, hard core workout for a good 45 minutes (when I usually poop out after maybe 15)! Go me!!
I felt so empowered throughout my workout... just like how I feel during labor. (I know... I know... I'm one of those crazy women who likes labor, and feels empowered by going through labor pains)