You might want to have a look at a course called "Mindshift" on Coursera. It is free to access and the main topic is the combination of lifelong learning and career switching.
https://www.coursera.org/learn/mindshift
From personal experience I would say: you will be more successful in such a career change, when you do not ignore the skills you have for your current job, but find a way to use them in the new one.