Practice if you have nothing to do, every day. Don't practice when you are tired. Just make sure you can exercise normally the next day. And don't worry about exercise, get into the habit and practice every day. Finally, eating more time can make everyone different. So don't worry, it's no use worrying, and then one day you are satisfied with your body shape, then you can train well. But stick to it, in fact, that state is very good. The time is at least 1 year, but in fact, for a normal and healthy person, exercise is a lifelong thing and a very relaxed and happy thing.