Estrogen dominance

I recently found out that my body is producing to much estrogen which is making my ovulation stop and my periods irregular which is why me and my boyfriend are having a hard time conceiving. My dr said it was from being over weight and told me I need to loose weight. The thing is I don’t over eat, I don’t eat out a bunch, I barley get my 3 meals a day in so I don’t know what else I can do he just told me to loose weight nothing else. So has anyone else had this problem and what help you with?