How To iMessage with Google Voice number

So I do not have a full phone # but I use a Google Voice number for most things now. I dislike the Google Voice app, so I thought I could add my number to my Apple ID and just messages, the Apple app. I have vision problems and I can see the Apple messages app way better than the Google Voice app. Well, when I added my number, it wouldn’t show up in my messages settings for starting new conversation with (whatever email or phone # desired). Can someone help please! I checked my mom’s and sister’s phone and id settings to see if I am doing something wrong, but idk what’s going on.