This, try to learn languages from different areas. You don’t really have to become an expert in a domain either, knowing C++, Java and basic software engineering will get you into a lot of places.
Good luck! Try not to get stuck on extreme details; C++ is a very rich language but most people that work with it have pretty rudimentary knowledge, you’d be surprised.
Thank you! Can u explain further your point on learning a language from different angles? Or in general what is your strategy to remain relevant in tech?