Where to Go from Here
Evaluate where you are in your certification pursuits. If you are not yet a CCNA, that should be your first step. The CCNA certification equips you with fundamental routing and switching concepts.
After attaining a CCNA, the next step would be to deepen your understanding of routing and switching technologies by going through the ROUTE and SWITCH curriculum and passing the corresponding exams.
The TSHOOT exam should be taken as a final step in the attainment of your CCNP Routing and Switching certification because it assumes a breadth of routing and switching knowledge.