My sister told me about artificial intelligence training, she is 18, and she does neural network training after uni, 1-2 hours a day. She hinted that some of her acquaintances have made this work their main occupation. My eyes even lit up at first, as I had been on the lookout for a home-based job for a long time due to my health conditions. But after a couple of months of actually learning AI, I realized that it wasn't really my thing - I'm still interested in more intellectual work. But as a part-time job I have left the device for now - 2-3 hours a day I can quite easily dedicate to solving problems.