I m first year in theoretical mathematics (graduate study), but I am very interested in theoretical physics, I have some knowledge in physics, general knowledge in mechanics and thermodinamics, electrodynamics, optics, waves, basics in quantum theory, but I am very interested in elementary particles and string theory. I have, obviously, a high mathematic knowledge, but it does not have many applications, I can do nothing with (I feel like not having any purpouse) so, it is difficult to reach a high level of theoretical physics? (I would apply my knowledge especially in string theory, but I think that would be too much difficult to jump from one level to another. What I can do, it is over to start now with strong theoretical physics (I am 22), or I can give a try? In the second case, I will study alone, without going on lectures and so on... I wolud just approach to physics as theoretical mathematician. It is possible, or I am nowhere in that way, niether I don t know mathematics, niether physics, and my life would be in a sh.t What is the best to do?