Why???

There are times other people would come to me and tell their problems. They would often ask for my opinions, suggestions and reactions. I just tell them what I think from what I understood. After sometime, they would thank me for the advices that I've given to them. They tell me I'm a great adviser... But the thing that I'm confused about is the fact that if I'm the one who's having problems or questions in mind... I come to a point that I can't provide resolution and I would need to ask opinions as well from others. It's so ironic that you can provide answers and solutions to others but if you're the one who is in that scenario... YOU DON'T KNOW WHAT TO DO!!!