The key problem is how to get yourself moving, rather than considering any specific fitness methods. In your case, you should start by changing your living habits. You can change into sportswear and sneakers immediately, from now on, from this moment on, from the moment you finish reading this passage. You can go out to the park and run on the playground without thinking about time, because you have plenty of time, without thinking about diet, just mix the staple food with meat and vegetables, and you can run without thinking about anything complicated.
Whether it is morning, evening or day, as long as the weather is suitable, find a fixed time and go running the next day. It doesn't matter if you can't run far at first, then run and walk, and ensure that the daily activity time is 40 minutes to 1 hour. After a period of persistence, you can run longer and longer. You can do some unarmed training on days when you don't run, such as push-ups and squats. Do it in groups. How? Watch the video. In this way, I run three times a week, do three unarmed strength training and take a day off.
You can also use some tools to help you, such as making a small video titled 100 day exercise record and recording your daily exercise scenes. Punching in this way can supervise yourself and prevent laziness.
When you persist for three months, you will find that you have become different.