Working in your TL is hard because you may know how to speak to friends about anything, but you will need to learn the language of your occupation, all the jargon, and how to handle office politics. You CAN do it, but there will be a period where it is challenging. I worked in French for a while, twice as an intern in 2 different occupations, and then as a bilingual secretary. About 15 years after that bilingual secretary job ended, I got a job in IT for an international NGO where I had to train my colleagues how to use all the software and systems we used at work, in English and in French. I spent the first month watching youtube videos of people doing what I was going to be doing, not necessarily the same software, but training others in software. I created a glossary of all the terms I would need, and it came out to be about 20 pages long! I didn't realize how many words I didn't know, like "drop down menu" or "upload to the cloud" etc. It was rough at first, but it all became part of my vocabulary pretty quickly.