Hey Suzi,

"Diets" don't work, just eat lean proteins, complex carbs, good fats in the correct amounts and you will be fine.

Protein shakes have their place but if you can eat solid food you will feel more satiated, I put protein powder in to my oats, if very busy I'll drink a protein shake for a snack.

If I were you, I'd get the food nailed first, of course you can lose weight with a calorie reduction but with exercise you will look and feel better.

I'd also just start walking, each day it'll get easier so you can progress, then begin doing other things, You can go for a power walk and get your heart rate up.

Try not to worry about it, don't make it complicated, just go on with your life and eat well/walk to start.

Good luck