There will be loose skin bc of how rapid the weight loss is. Start exercising and weight training as soon as you get cleared to. Also, lotion lotion lotion. Keep your skin moisturized. Other than that the rest is genetics...some people have great elasticity and others not. My skin is loose but I didn’t weight train right away...wish I did. I am now. I’m 44 as well. But ill take the loose skin over how big I got any day!!