Where to start?

I want to do a lot of readings during the summer. My list includes Srednicki's Quantum Field Theory, Zwiebach's A first course in String Theory and Nakahara's Geometry, Topology and Physics.

The thing is, I do not know where to start... I was reading the first few chapters of Zwiebach's. It is alright, but I kind of want something more pertinent. The first few chapters are just building up to the relativistic quantum open and close string on chapters 12 and 13. I do not want to skip anything, but at the same time I feel a bit desperate. Anyways, I think I am going to try now Srednicki's book. Maybe I will be able to get through the first part on spin 0. I have to start with the math at some point too...