Create a fitness YouTube channel with ex tips and nutrition recipes

I started this camping in order to show the people my body transformation through several months following the exercise program given by an app called freeletics. In order to do so, I need to pay for the coach app and it will give me a routine and a diet. I want to do this so I can help people who doesn't want to pay for the coach and maybe just try a few weeks of exercise to check if they body changes. This app promises a change in 14 days and I want to prove if it's correct and show everyone how to prepare their recipes and perform the exercises in a correct way by doing videos and uploading on YouTube. Maybe for some people pay the coach isn't too much but they don't take it serious. I will do it to change my body and to help everyone change theirs