I'm looking to start my career in IT. Can anyone recommend where to start and what language to choose?

What area in IT are you interested in? It has alot of field to go in namely:
- Cloud Devs
- Network Engineer
- Software Devs
- Data Science
- IT Support & Administration
- AI / ML Engineer
First find a field that you want to go in, understand your motive why you want to.
Then understand what the requirements in that field needs for you to go in.
If you want to go to CyberSecurity for example, it has alot of sub paths you can go to aswell:
- Pentester
- InfoSec
- Cyber Analyst
- Security Engineer
- Cloud Security Engineer
- Incident Response Manager
- Malware Analyst
- Security Operations Center Analyst
and so much more. After understanding that, know your motive, then find what each path requires you to learn.
If you chose Malware analyst, you will need to learn Reverse Engineering, low level programming languages like C/C++, Assembly, Rust, stuff like that. Just do your research since the IT Field is VERY BROAD. So you need to specifiy what field youre going in. If you manage to go that far, then you already have 60% of progress compared to people going from one field to another because they were not sure of their path.