Which fits better?
If you are set on the decision of a complete change in your career path, you will need to reevaluate your qualifications and general suitability for that position. Update your resume and look into ways that you could further your knowledge in the field. If it requires experience look into jobs that would fine-tune your skills and at the same time give you the experience needed.
Will it be too much?
If you are at a place that does not permit the required commitment and time to make the transition then rethink the choice. Or make arrangements to slowly make the transaction without too much effect on your current state. If you are within a tight schedule or have too much distractions in your life take time, clear your schedule and don’t rush.
Will I get what I want?
Every job requires a bit of grunt work, that many of us find very basic and menial. Not every day is exciting and it can become harder especially at the beginning. But you need to question whether the work that is required of you is capable of satisfying your requirement. Will I like it? Is it intellectually stimulating?
Everyone ponder of change in their career at one point and whether you go ahead with it or not is completely up to you. Do you enjoy just thinking of a better time or are you ready to move. Change is a very hard choice and it can have different effects on different people. Much like a business decision needs research do your homework to make sure it’s the right choice you.