Passive income business turn profitable but reached a growth ceiling

Hey, I have no idea how to say it, but I have invested $3000-$5000 into a business that made me more than $15k+ and is still making me money right now, but the revenue is just like I had a part-time job. We are between $500-$1000 in a good month and $300 with me doing nothing but just checking in. I was obsessed with investing since I was 19; I'm 26 now. I dropped out of school at 23 because I was failing academically, switched degrees, and dropped out because I had no motivation to pursue a shitty degree, which would have made me end up in a shitty position anyway. I spent 3 years building a business, but I didn't reach the financial goal I wanted after 3 years, which was to turn it into a full-time income because it would have required me more time and money. Now I can't stop feeling like I've wasted my time instead of just trying to finish school and get a degree, because I'm 26 with no college degree. I can't stop feeling like a fucking loser despite turning the money I invested into passive income. I'm planning to go back to school in 2027 I feel like I was just one of those stupid, ambitious kids who watched too many YouTube videos about money gurus. Is there anyone who felt that way? Do you think your early 20s was the best time to just take a risk like this? Because I literally feel like shit and feel like I was too ambitious and got brainwashed by the internet.