IMHO: This is natural growth without mentorship. You build solutions beyond your level and where other people are not, and then question whether they were the r

IMHO: This is natural growth without mentorship. You build solutions beyond your level and where other people are not, and then question whether they were the right thing to do. With experience you start to learn when to build, when to buy, when to delegate, etc. Its all part of growing into a responsible leader. Answers are not always clear but my "Gonna guess cause your asking" view is that you aren't working with seasoned engineering leaders who can help guide you. Which is very common IME. Good for you for questioning and thinking about how to evaluate the decisions you made which impact others. If you find experienced leaders to guide you, you may grow faster and with less anxiety. But if you do not, continuing to find ways to improve your decision making and think about how it impacts others will set your course for growth. Some people don't really care about all that and just build whatever keeps them interested and then move on and that's the end of their thought process. You don't seem like that, so I would guess you are not a Charlatan, whatever the correctness of your prior decision(s).