What are your interests? Do you have a passion that drives you? If the field of medicine interests you, then research that field. Find out what the field of medicine has to spark your passion.
How did I arrive at photography? A guy told me I should know how to use a camera to be a commercial artist. I can't explain why, but that moment changed my life. I borrowed a camera from my aunt, bought film, asked questions, read books and took classes. I fell in love with photography and the images I could create. That was 46 years ago and I am still obsessed with photography.