You better start building one right away. I started by building a simple boe-bot copy (search for boe-bot). Then I moved on to bigger things. The issue is robot

You better start building one right away. I started by building a simple boe-bot copy (search for boe-bot). Then I moved on to bigger things. The issue is robotics, as others have mentioned, is the sheer size of it. Hack with robots to find what it is you like. Then just hack away some more. Some of the roboticists I know dont have a robotics degree. One is even a doctor.