Evolution vs. Creation

"i believe the theory of evolutionn because the theory of creation makes no scence....im a catholic and i believe in god i just dont believe in this whole creation thing..i think that once we were monkeys and evolved into a whole new species known as a human itsmore reasonable than saying there were only two humans and we kept producing....how did we keep producing?were there sexual relationships with brothers and sisters? if there were only two humans how did we come about? thats why i beleive in the theory of evolution.