AIW for overthinking about my boyfriends day trading / fast money career

Hi Reddit, I’m curious about some advice/perspective. My boyfriend is 21, hasn’t gone to college, and doesn’t plan to. He lives at home, his parents pay for his groceries and car, etc. He started day trading at 18 (when we met) and has been doing it for 4 years. He’s tried lots of strategies sometimes he makes money, but often he blows his account.

A few months ago, he paused trading to try building a fitness business and an app, but that didn’t last long. Now he wants to focus on building his X (formerly Twitter account to make money. He plans to create a platform giving advice/info on supplements, peptides, TRT, health, etc., since he’s done a lot of research on this. He posts multiple times a day, sharing motivational posts or gym pics, and often explains achievements like bench pressing 225 lbs for 20 reps. He also takes testosterone replacement, so he has a very muscular, lean body which I can see why he thinks people would look up to him. Right now he has around 300 followers and surprisingly is getting good views his post recent post got 3k views so far and 12 likes.

He’s also considering getting back into trading and studying strategies again.

I’m overthinking a lot and I’m curious from a realistic, practical standpoint does this sound like a plan that could actually succeed long term? What are the odds of something like this taking off financially or as a career? I’m asking just to understand the reality of the situation, not about our relationship.