The more over-40 I get, the harder it is for me to keep a body positive image. It feels like a race against time to keep things from falling apart. I used to be a bikini model. I spent most of my teens, 20s and early 30s running around in a tiny bikini for various swimwear companies. Now I’m nearing 50 and usually opt for some modest boyshorts and tankini style beachwear. I recently accepted a job doing a video for a self-tanning product and when they sent the creative brief than mentioned most of it would be done in…