@vypr Check job offers that interest you and see their descriptions (say, .net dev for example, that's c#) and learn said requirements and then apply to that job or similar jobs
@vypr Create a Portofolio and start working as a Freelancer.
Another thing could be building something with your knowledge and sell it.
Personally I would do the secondo option, with your skills added to ChatGPT you could create something very interesting IMO.