The only difference could be that while you have a choice to choose your first language in State TET exam (Hindi, Telugu, Tamil, Kannada etc), the second language will always be English. This is true for Central TET as well.
The syllabus of CTET is vast. If you are new to CTET, the first thing you have to know is that CTET and State TET exam and syllabus is organized in the following way:
Language I – English
Language II – Hindi
and your friend marked the following –
Language I – Hindi
Language II – English
Your English paper will be tougher than your friend’s English paper.and her Hindi paper will be tougher than your Hindi paper. So, whichever language you are more comfortable with, choose that as your first language.