Teach yourself to bake and make cakes.
I suggest that if you are only interested in trying your own life, you can try to teach yourself first, read other people's blogs, and then practice by yourself. If you don't know, you can ask others, and you will have a great sense of accomplishment after your successful study.
Professional training
If you want to take this as your future job, you'd better do a professional training, so that you can learn baking knowledge systematically and comprehensively, and then you can become a qualified industry person, depending on your choice.
Baking knowledge
Learning to bake cakes can be self-taught or professionally trained. Baking is very interesting. Different raw materials and different temperatures will have different effects. Making cakes is not tiring, but only if you need professional utensils, such as beating cream and eggs. If it is handmade, it may take some effort, but when you make a cake, the finished product will be displayed in front of you, and you will feel very fulfilled.