Tonight was my first "comfortable" 30 minute run. It still hurt, I still, at times, wanted to stop, but it was comfortable. And I know why - it was on a treadmill. I increased the speed from the setting I was using to make it a bit harder but I know that what I struggle with the most is not being able to regulate and maintain a steady pace when I'm running outside. Does anyone have any tips for maintaining a steady pace?