It may be a case of different styles of worship. Especially in the Eucharist (communion). The Luthern church as a whole tends to have a view more consistant with the ancient church regarding communion. The Eucharist is more than a symbol it is a time of worship to experience the real presence of Jesus within the congregation. It’s the culmination of our worship. Whatever it is,talk to your parents about what you are feeling. I would want my children to tell me their concerns. I agree with Nate in that you show great maturity in asking for help in your walk. Glad you reached out!