I know that "to believe" means "to think that to something is true or correct" when used with things. (references: https://dictionary.cambridge.org/us/dictionary/english/believe , https://www.wordreference.com/definition/believe ).
What does "to believe an advice from somebody" mean? Thinking that an advice is true or correct does not make much sense to me. Does it mean "to think that the advice is good and worthwhile to follow"? If so, couldn't I also say "to believe in an advice", given that "to believe in" can mean the same, eg I believe in getting to work early (according to https://www.wordreference.com/definition/believe) ?