Yes it would be nice if you have degree, a bachelors degree as you mentioned earlier. You don't have to quit the formal studies altogather. But if you are going for medicine, then it would be very difficult for you to pursue both medicine and deeni studies together. Because medical college is pretty engaging in itself. But some people can balance both if Allah wills. On the other hand if you take any other less difficult degree you will be easily able to concentrate on being an alima. P.s. Sister perhaps do Salatul Istikhara for guidance.