I too always drew as a child and took some elective drawing classes in high school. When I started nursing school, I took 2 drawing classes as electives and found drawing to be a nice way to wind down after my 2 hour nursing lectures. I would spend 5 min after lecture drawing to process what I absorbed, then I would recopy my notes and the relaxation part of drawing always helped my mind absorb better I feel. I went on to become a nurse and took watercolor classes from a local artist for about a year many years ago. The rest has been a lot of trial and error over the years, self-teaching, experimenting with different mediums, but it still does for me what it did then. It is a wonderful way to clear the mind, like meditation. My favorite medium while I was in nursing school was charcoal. I am still learning and learning.