Can you tell me how i could avoid rhabdomyolysis while fasting for extended periods?

Not a risk: If you don't eat, you'll break down muscle protein for use elsewhere. This isn't rhabdomyolysis, but normal catabolism. What's the idea fasting like this? Despite what anybody might tell you, it's not healthy. A good spiritual advisor might point you to hard work in community service instead. Weight loss is best accomplished by exercise and eating sensibly. Talk with a few folks.