Switched from banking ops to data analyst at 33, now 37 and no regrets. Things I wish somebody told me: one, your age is not the problem, your excuse is. Nobody in the interview asked my age, they asked can I do the work. Two, don't quit first then study. I studied at night for 8 months while still drawing salary, built a small portfolio, then only jumped. Runway is everything when you have a car loan and a kid. Three, take a pay cut mentally before you take it financially. I dropped RM800 for the first job but crossed my old pay within 18 months because the ceiling in tech is higher. Four, the hardest part is not the skill, it is telling family you are starting over. My mum thought I gone crazy. Now she brag to relatives. Just start lah, 40 will come whether you switch or not, might as well arrive there doing something you actually like.