do you guys believe in all of our saints? or do you have your own?
Too much a blanket statement. I think some earlier protestant groups venerate some saints but not to the extent that we or the Orthodox do. Many more groups would see that same veneration as idolatry or worhipping false deities. Some protestant groups say that any christian on earth is a saint.
We believe that once we are saved, then we all become saints. So, we have many many saints.