The correct answer is: regular.
A regular routine is one that is done on a consistent basis, such as going to bed and waking up at the same time each day, or eating breakfast, lunch, and dinner at the same time each day. A regular routine can help to improve our health and well-being by providing structure and stability in our lives. It can also help us to be more productive and efficient by reducing the amount of time we spend making decisions about what to do next.
The other options are not as accurate as “regular” because they do not necessarily imply that the routine is done on a consistent basis. For example, a “timely” routine might be done at a specific time, but it could be done at different times each day. A “fixed” routine might be done in a specific way, but it could be done at different times each day. And a “some” routine might be done sometimes, but not always.
In conclusion, the correct answer is “regular” because it is the only option that implies that the routine is done on a consistent basis.