One last thing: no productivity system can override your choices. A system can support you to help you choose the things you’ll focus on, but you also need both self-mastery to focus on your chosen goals and the expectation that focusing on them will help bring about the results you want.
I learned another big lesson from this. I now never help people who don’t ask me for help, and even then I only help them to the extent that they ask. I also look for ways that I can help that don’t compromise my own position, and that require the least outlay of my money, time, and effort.