Contrary to what many bloggers preach, I suggest that since blogging takes time, don't quit everything for it. If you're considering blogging, my suggestion would be that do not skip your current job/profession or even studies for blogging. Blogging has a lot of potentials and it works (I'm proof) but having said that, you should always try blogging as a side hustle first (and this is possible since blogging is very flexible). Keeping aside an hour or two for blogging wouldn't hurt your current situation and when you start seeing results and are confident enough then you can decide. I know a lot of my friends who manage studies (and some even jobs) along with blogging, so you also have this option.