You apparently didn’t read what I wrote earlier.
There is currently no way to get Bitcoin without investing.
But I can’t get a simple job, or they won’t hire me, or the salary is so small that I don’t even have enough for travel and food.
There can be no talk of any investment here at all!
If you still don't have a simple enough job with a salary that is worth it to be able to travel and eat and buy Bitcoin with the results of your work. That means you still have to struggle through several processes that you have not studied so far so that you can get a fairly simple job in life and can continue to earn with that job. You just need to get rid of your laziness and continue to seek knowledge that you don't know yet using your own abilities so that you can hone the skills you currently have, especially those related to Bitcoin.