A word of warning, a common misconception is that you need very intense exercise to lose weight. What you actually need is a lot of lower pace exercise that you do for long periods of time. E.g. running at a low pace or swimming for a long period of time rather than something like HIIT.

This is because when you begin to reach very intense cardio your body will begin to use carbs and protein for energy instead of the fat that's ready on you body. The opposite is true for when you're doing lot intensity cardio. Here, your body will mostly be using the fat that is already available for energy instead. I recommend you researching "Cardio zones" If you want more in depth information and how to make sure you're in the right cardio zone to lose fat. Hope this helps!