I have been coding since I was 12 and I am 40 now. I developed a lot of projects for major finance instutions and from AI to blockchain but could not sell them to one another client and lost interest. I founded a one man cyber security company hacked some banks made some deals worked with them made some money but lost interest after some time. There is nothing I can’t code or hack from bottom to top but I am terrible in founding profitable long term business. And now I am in mid-life crisis and need some advices? Is there any books I can read or people can I talk to?

Thanks.