It is absolutely possible to make a career shift in the middle of life. In fact, changing your career in the midlife has a challenge and thrill which can give a whole new meaning to your life. People mostly look for such changes not for money but for the love of the job and satisfaction coming with it. In fact, it has been seen that majority of people who have never been satisfied with their previous job derive fun and satisfaction from a midlife job change. It has a much greater impact than what we normally think it has.
There will be obstacles when you change your career midway but be unshakable in your decision. Talk and meet people who made a successful change so that you can derive inspiration from them. Being inspired from success stories, it is time for some introspection. Think about your skills, your interest, your passion and of course your experience. There are certain skills that are known as transferable skills which can be used in various types of jobs. Find out how many you have and also think about the co-curricular activities that you have been a part of. These will help you know yourself better.
Most people make a career change in midlife to achieve something different for themselves not taking into account monetary rewards. However, if you have a financial reason to change the job, then take note that certain organizations have provisions for senior employees to change their job roles. Find out more about such provisions at sites like these. Sometimes government aided programs can also be of help. Search for them online or visit the local workforce center to programs with economic help. You can apply for government grants even at the age of 40.
Remember that you are stepping out of your comfort zone which can pose difficulties for you. Here only your genuine passion for the job will save you. Do not think much about the change instead break down your plan into small steps so that you can avoid being overwhelmed. Have confidence in yourself and use your experience.