It sounds like the people in your church are brainwashed into thinking that unless you belong to their church and their faith you will not be saved.
Do what makes you happy. Only you can decide what is best for your soul. Every church will try and control you to some extent, why because the need members, members mean money? Who goes to heaven? The Jews who don't believe in JC, the Lutherans, the Catholics, the Mormons, Jehovah Witness, Islam, Budda. Who will it be? No one really knows. So none are correct and none are wrong. Don't let someone tell you that you have to do this or that or believe this way or that way. Look into your heart and let it be your guide.
But most of all, just be happy. I am glad you don't see your mom. That must have been hard for you. You are very brave and wise.