Learn what additional training you will need to transition.
Consider shadowing someone at the job for a day or two.
Consider how the pay and time commitment for the new position will affect your lifestyle?
Work on Training while continuing in your current position.
Create a New Resume for the new career field.
Use your contacts and other resources to Find a New Job.
Make sure you Switch Your Benefits.
Do not burn any bridges when you leave your job.
MORE IDEAS FROM THE ARTICLE
If you're aiming at the same job as someone with years of experience in the field and more developed skills, you probably won't beat them out for the same gig. Aim strategically and choose opportunities that you know you can excel in.
Time to give serious thought to this life-shaping question: What exactly are you going to do with the rest of your life? There has never been a better time than right now to change the course of your life and that means changing your career.