I don't know wether I should choose physics or mathematics in University. I'm very interested in theoretical physics described in those popular science books such as the string theory ,QED, relativity , and I want to become a theoretical physicist. But I'm not impressed by the physics taught in high school and I think some of the questions are tedious(I like how the formula is derived though). However I enjoyed pure mathematics. I'd love to spend time on thinking new ideas. I know that being a theoretical physicist needs a lot of mathematical knowledge, should I study maths first then transfer to physics after I have finished maths, or just physics/Math as there is no dual degree.