When I first started running I never expected to get something more than improving my physical health, I just did it because it's good for you and it burns a ton of calories. I've lost a lot of weight running but that's not even close to being my favorite part about running.
Every time I run I'm challenging myself and, even though I try to deny it, I'm a highly competitive person. I like to win but even more than beat someone else I like to beat myself. I love to improve who I am mentally and physically.
So, for me running is a way that I can improve myself and it gives me a definite goal to work towards. Every 5K I've done so far, I've beat my previous time, it makes me feel so good to know that I'm going out there and giving it my all.
Some days I feel like there is no way I can run what's on my schedule (like Tuesday, 6 miles, I don't know how I'm going to do it) but I always go out there and just do it. I feel such a sense of accomplishment after a long run like that and it makes me feel like I can do anything that I put my mind to.
I just want to keep pushing myself, I don't ever want to feel worthless like I used to ever again.