New to MFP

Hello MFP members..

I am new to MFP and this is only my 3rd day. I love the tools, but feel like I need more motivation. I do run and enjoy running. I have been running for over a year now and struggle daily with the fact that I have not lost any weight. After I had my daughter, my thyroid got out of control and losing weight is non-existent for me right now. I feel so defeated and have tried everything. Any suggestions? Motivation?