I Make Carrot Smoothies W Coconut Milk Is That Good

I make carrot smoothies w coconut milk is that good for my low thyroid !? I have gained tons of weight and it don't seem to subside and I am on the perfect supplement diets I drink tons of water and ofcourse my thyroxine I'm on 75mcg once a day
Do u have a magic medicine to help my metabolism pump up a lil so I can work out without feeling like I'm gunna collapse 20 min into my workout ?
My name is Jodi btw thanks