There are 2 ways to change your career

1. Start along with your current job. (You have to manage your time and work very hard.)

2. Take the risk by building an emergency net of 12-18 months, and by building a skill along with your current job. (It gives you time to try, especially if your job is demanding.)

Trying along with your current job is a sureshot way to start small.

Trying by quitting and saving is a sureshot way to try multiple things.

You do you.