When it comes to problems regarding your partner, would you take someone else's advice (advice from family, friends, marriage counsellor) or would rather stick to your instincts and do what you think is the right thing to do?!

Combination of both! Depends on what are the issues at hand. Someone else's advice is good because helps u make a level-headed decision and help U see more but frankly I don't think family and friends are suitable at all (either they are inclined to favor either party or to make/break the couple). I think the most suitable is a marriage counselor as they can give the most objective help and give useful suggestions as they are experienced in helping couples through hurdles. Ur instincts will often fool u - unless we are talking about smelling something fishy about ur husband - as in it's not an open issue yet. If issue is identified already, a counselor is best. Hopefully u can get good and extensive help to ur marriage and life