Page Grid Excerpt Issue

Hello,
I'm creating a grid for one of my pages called "Mission" with a picture, title, and excerpt with "Read more" button to open directly to the webpage. The issue is that the excerpt shows

"Mission Our mission is to......so on and so forth" Same goes for my other Page grids, this is because I my pages have a heading on each of them. Is there any way I can remove the first word from each excerpt to avoid the "title" being displayed before the actual content. So instead I will have

"Our mission is to....."

Thanks so much for your support,
Regards, Alexander