It is a wise choice if you are passionate about it and willing to put years of time and effort without pay. A cinematographer is a general and leader of the camera and lighting department. To lead a group of people you will need years of experience, whether through short films and your own projects or working in the camera department on different sets and working your way up through your professional network. These days Cinematographers need a good understanding of Vfx and need to be able to communicate effectively with the vfx supervisor. This requires good math skills, communication skills and artistic talent (a good eye).
If you are a beginner I recommend applying for film school or working on a film set with the camera department and see how they operate in a high pressure environment. Realistically you will start out making films with friends and it will take years around mid 30s, to late 40s before you get the big job. It is very unrealistic to expect a cinematography job after film school and that is why many students give up after graduating in their early 20s.
Best of luck and never give up!