Synastry between us help..

I am new to trying to understand astrology, and wanted the help of someone who may know more than me.

I feel like our relationship will be a failure. I do not know our birth times, just birth dates.

I was born on September 11 1992
and he was born on December 19 1988..

Any help please to try and explain if this relationship can work?

Well Virgos and Sagittarius automatically get along ?_??___?__?_? I know this because they're both mutable signs... Usually mutables find each other easily well really any group... But the mutable group is fixaded on Virgo Picses Gemini and Sagittarius.. Picses and Virgo are opposites and Gemini and Sagittarius's are opposite.. Usually opposites attract but everyone's different. I believe in the moon you hold alternates to the sign you most act like and get along with. But as I was saying the mutable group. Usually opposites attract but if not the Gemini will go with the picses and the Virgo will leave with the Sagittarius. Also Beyonce and jayz are a Virgo Sagittarius couple.. Watch them.