My advice would be YES! Look for someone who has experience is the industry you need help with, who's done things you would like to do (ie, raise money from investors) and is a person you find easy to talk to. You find this person by meeting and having intelligent conversations with A LOT OF PEOPLE... it will take time to find the right mentor, so don't give up too quickly. Go to as many startup "networking" type events that you can, meet as many people as you can, and follow up with people that you find interesting. People inherently like getting asked for advice / their opinion, so don't be afraid to ask that of the interesting people you meet.