Should I wed on 2018/2019/2020

Hi, I want to ask if my boyfriend and me should hold our wedding this year 2018 or 2019 or 2020.
I was born 19 Oct 1986 (tiger), my boyfriend was born 6 Aug 1992 (monkey). We got some good dates from master on Jun 2019, Nov 2019 and Mar 2020. But my mum heard that 2019 is not good year for both of us to get married. Appreciate your help. Thanks.