“We do not make changes for the sake of making them, but we never fail to make a change when once it is demonstrated that the new way is better than the old way.” Henry Ford
Change is the only constant in the universe, so it's generally good to get out of your comfort zone and make changes in different areas of your life in order to grow and be the best version of yourself. There is however something to be said about the stability you get by focusing your mind. If you change your routine all the time, you often end up spinning your wheels. Change for the sake of change does not equal progress.
When we’re unhappy or dissatisfied we often seek change for good reason. However, an indiscriminate or haphazard change without considering the consequences can stifle your preferred progress, prevent you from reaching a steady productive state and create a chaotic mess. Have an end goal in mind whenever you make a change to help ensure progress. Acting arbitrarily can accidentally make what you thought was an already bad situation even worse. Before you make a change, ask yourself exactly why you need to make this change. Make sure that when you make a change, you have a clear objective in mind and do your best to make sure things are better after the change than they were before--otherwise, you should consider reversing course. Onward and upward.