We have always opinions for others. Why? Because we can clearly see what’s going on them. Based on our limited observation still make sense where that person should go. Why don’t we do the same exercise for ourselves? Because we know too much about who we are.
Books are great for example for leading people. It is a general opinion. You can apply whichever works for you. Most of the time writers who wrote great books or touched lots of people’s lives, they are still struggling with their own problem. (In Turkish, we have saying “Terzi kendi söküğünü dikemez” it’s pretty much similar meaning to English one “the shoemaker’s son always goes barefoot “)They need a guide or coach to open literally their eyes.
Leading your own life is an ongoing process. You can’t figure out easily yourself. Best way to start: Surrounder yourself with great people and book.