I'm looking to start my career in IT

It depends on what you want to do:

C++ – This is pretty much raw code, you write everything yourself. The good part is you control everything, the downside is the same. It’s used for game engines, games themselves, and large software.
C – Even more raw code. Basically a lot of programming languages are built on C.
C# – Used to make games with the Unity engine and also for Windows apps.
Python – A great choice for beginners. Used almost everywhere: automation, scripts, AI stuff, data analysis, and even web programming. Easy to learn and helps you understand the basics of programming. Many people start with it and then move to harder languages.
JavaScript – The main language for web development. It adds interactivity to websites: buttons, pop-up windows, animations, menus, and so on.
TypeScript – Very close to JavaScript. It does pretty much the same things, just a bit differently.
PHP – Also web development, in this case the backend (the code) of a website.
HTML – Also used in web development, for the skeleton and structure of a website.
CSS – The visual side of a website, the frontend. All the looks: fonts, colors, spacing, animations.
Java – A language used to build software and Android apps.
Swift – Used to build apps for iOS, basically everything for Apple.
Go – Good for different online services, works with servers and backend systems.
Kotlin – Often used as a replacement for Java, also for building Android apps.