Hello,dear

Well, As per me you should try to make good control over any high languages ,and for selection in big IT companies like Google,apple  etc. You should make as much projects as you can it will help you in making your resume so strong.Well, that's a part of interview in languages mostly guys who came across interview or cracked they said you should have good control over data structure and alogrithm most of the interview question are from this portion.and about projects if you made projects and attach you to resume it help help in asnwering they will ask questions related to your project, leaning many language do not help anyone so much ,how much type of answer you can answer if they specifically started asking from each languages.So, focus on projects, data structure and alogrithm.

Hope this will help you!!