"This is what church believes and teaches. Can it help? How?"  
It can help, Dennis, to realize how and why the Roman Catholic Church continues to believe and teach this way...despite the great event of the Second Ecumenical Vatican Council back in the 60's:
http://churchandstate.org.uk/2015/01/opus-dei-influence-rises-to-the-top-in-the-vatican/  Definitely a blow-your-mind article.

And as for what we can do about it, see https://RiteBeyondRome.com