I advise the opposite actually, seriously consider the source of the advice. I've seen people in relationships that I wouldn't want to be in give relationship advice and I made a point to consider such advice as part of how you wind up in a relationship like that. Meanwhile I have people I respect and when they have advice on issues relating to why I respect them I take it seriously even if it's something I would brush off from most people.
Now obviously think about all advice, but framing and weighing it off the advice giver is valuable. The positive financial advice (do this with your money) of a broke person is worth a lot less than the negative financial advice (don't blow your money like I did on this) that they may have