I have a bachelor degree from Physics. I have been working as a software developer who work with C# in desktop apps and C in embedded apps. These multi branches did not make me a professional both of them. My aim is to be a wanted person who in software industry for next years. Thanks for your advices.
Take this like everything else you hear with a pinch of salt, but I recommend you pick one language and just go for it. No matter the language, even if it is discontinued and outdated, developers are still in high demand. Learn your chosen language and practice daily. Try and read articles and expand your knowledge. When you feel you are ready just go for it. There are many resources to help you.
Good luck, and enjoy!