“... seek forgiveness for their sins ...”
If you have received Jesus as your Savior - YOU HAVE ALREADY HAD YOUR SINS FORGIVEN. Jesus died “once for all” - so we don’t have to continue to go to the alter and “seek forgiveness” over and over. If we did have to do that .. Jesus would have told us.
Excuse me .. being CATHOLIC or BAPTIST or METHODIST - does not make you a “Christian”.
People become a Christian by receiving Jesus as their Savior - and not because they belong to any particular church.
You have the right to choose what you believe.
Thousands of Christians and Jews, for example, ask God's forgiveness for sins against Him. They do not believe that Christ's death on the cross gave them a free pass into heaven no matter what misdemeanors or crimes they may commit. (Yes, even Christians do wrong.)
I suggest you respect the rights of others to relate to God as they choose, and as they believe they should.