This weeks assignment by @missy and @rambo is to give my best advice. I think it kind'a depends on the problem so I picked a few that, in my opinion, work for almost everything:
1.- Follow your mother's and best friend's advice. They love you and want the best for you, and if they think you're doing something wrong or you deserve better they are probably right.
2.- Don't waste time and energy in comments from people who don't like you. Life gives you enough mandatory crap to deal with, so de-attach yourself from the non mandatory ones.
3.- Don't do to other people what you don't like people to do to you. That way whatever happens won't be on your account.