Being an architect can be very challenging and competitive. University does not teach you everything you need to know, but it does develop your creative talents and opens your mind to new ideas.
You will learn about business and the technical aspects of architecture when you start working in the field. You will also develop useful contacts and relationships with contractors, engineers and clients. Practicing architecture for most architects is not about designing per se, but about coordinating projects, solving design problems, and overseeing the details of the construction. All these sometimes mundane and uninspiring tasks will lead to a successful design.
Over time, you may prefer either the design aspect, or the technical aspect of the job and may veer towards doing one over the other. The direction you take in your career will dictate what your typical day will be like.
Architectural design focuses on the design of a building, the use of 3d models, sketching, renderings etc. Technical design focuses on the construction, documentation, and details of a project. There is also the business side of architecture, and if you find you prefer that side of the picture, you can branch out and become a project manager.
Try to get an opportunity to spend some time in an architecture office if you can. See if you like what the people are doing, chat with them and see if they are the type of people with whom you'd like to work with - this is really the best indicator of whether you will enjoy being an architect or not.
A neurologist is a medical doctor who specializes in treating diseases that affect the human nervous system.