Elegance, I would suggest for you to research food. There are a lot of foods, if taken together, that promote weight loss. Of course, rigorous and daily exercise is a must.
About the exercise, the most important thing is to "engage" your muscles, you must feel them woking while you exercise. Just going through the motions will not do a thing for you.
It will hurt in the beginning, but it HAs to, slowly you will get stronger, once you do not feel any pain or strain, it is time to make the exercise more strenuous.

Good luck.

What comes around, goes around....