Anything perceived has a cause.

All conclusions have premises.

All effects have causes.

All actions have motives.

— Arthur Schopenhauer

Checkout - Socratic questioning, it is a technique which can be used to establish root causes through strict analysis. This a disciplined questioning process used to uncover truths, reveal underlying assumptions and separate knowledge from ignorance.

Think from first principles and question why until you understand it. And never take anything personally. You are not your work.