I think that most individuals, specifically our younger generation, are too "proud" to ask for advice or help. I'm here to tell you that most of my experiences I've been fortunate enough to have were a direct result of me reaching out to someone; either as recommended by a friend, seeking them out myself, or after engaging in casual conversation with them.
Here is a great example I experienced recently...
While working at the gym, I asked a frequent gym-goer if he would briefly glance at my resume. He quickly agreed and scanned over the document. Within the 30 seconds of reading it, he noticed my objective had to do with landing a position as a freelance writer. He then offered to put me in contact with the "right" people that could make this happen. I didn't ask for that, but by simply asking for his opinion he was inclined to help me.
People enjoy helping other people.
Make the most out of each opportunity to meet new people! It really is all about who you know. I don't recommend going around asking for favors from every person you meet, but if you show genuine interest in someone each time you see them, it is a good possibility that they will help you out in one way or another down the road!