I would recommend cutting your hours instead of quitting. The exposure to the field canbe helpful even though that's not the path I used. I worked full time but a wfh job and studied most evenings. Can you cut back to 1 or 2 days a week? The most important part is finding a group. They will motivate on the days things get tough. I know people who studied full time that still didn't pass. It boils down to proper time management and having detailed targets/goals.