Looking to lose about 40 pounds

Hey everyone :-)

I'm currently and 175lbs and am looking to be 135/140 (maybe less once I get there). I was 150 about a year ago and an avid half marathon runner. I have not been running or training very much and the weight crept back on. Currently I feel very insecure about my body and some of my clothes do not fit. I have signed up for 5ks and 5 mile runs hoping to work my way back up to more longer distance runs in the near future.

Please feel free to add me if you have similar goals and would like to motivate each other :)

SW: 180lbs
CW: 175 lbs
GW #1 165
GW #2 155
UGW: 140