What to do !?

What to do !!??

I have learned JAVA previously but not started DSA, now I was starting DSA and was thinking to do so in cpp so that I will have knowledge of both java and cpp (I am in 5th semester). I have paid resources of both java and cpp for DSA (apna college sigma).

I am currently in 5th semester, aiming for infosys SP roles.

What should I do !?