WHICH LANGUAGE FIRST (C,C++,JAVA,HTML,CSS OR ANY OTHER ).
Big answer is C++ and if want c then undoubtedly these are good choice to start as a beginner.
It is widely accept as one of the best programming language.
It is fast easy to use and easy to learn from internet because you know that many youtubers and websites are try to give the best efforts to educate students across the world.
Like-textualsolution.com are try to provide all the content related to the CBSE from class (1-12) You are not charge any money use use this website for NCERT solution for any class.
more than enough channel on Youtube are provide course related to coding.
unfortunately you want to start from any other language you are most welcome to start your coding journey.
All the best be consistent be confident.