Most Christians have particular church which they are a member of or they like to attend. Some Christians worship on their own.
But I got a question for you regardless of your Christian denomination, have you studied what you are being taught ? or have you talked to someone of another faith ?
I have learned it is best to avoid debate or argument. Perhaps it is best to attend first your church Bible study and also know where your church teaching got its source, like where in the Bible did a certain teaching came from.
Let me quote apostle Peter as he wrote in 1 Peter 3:15 But sanctify the Lord God in your hearts: and be ready always to give an answer to every man that ask you a reason of the hope that is in you with meekness and fear: