I think you are facing the same difficulty you would if it was any other non interpreted strictly typed language…
IDEA is great, especially since you will want to debug things rather than logging everything just to find out simple thing. From my experience i dont know a single productive developer who uses terminal for java/kotlin… like its not vimable language, it can be done but you will never be productive.
What i would recommend not to try force your way and explore the new tools. You are not always going to write some simple programs, yes for simple hello world temrinal is totally fine.
Try using this video but do every single thing he does with him.
He generally makes good content for trying out new stuff or learning from scratch.
If you actually try the video and repeat everything he does and still feel the same way let me know i have few more optiosn in mind that could help but i think this is the best for someone who knows how to code and is not a complete beginner.