It is not too late to learn to be a chef at the age of 35, because there is no age limit for learning to be a chef, and you can choose short-term professional study. Although not as rich as long-term professional content, you can master a variety of cooking techniques by yourself.
Generally, you can master basic cooking skills (knife work, spoon work), cold dishes, hot dishes, hotel popular dishes and so on in 3-6 months in a professional school!