To keep things short, I'm a secret Christian and live with my parents. I was once of a different religion which I won't disclose. But I have accepted Christ into my life. Every year, we have two religious festivals. Due to me living with my parents, I have to join in. On these occasions, it's a tradition to give gifts. Or, in my case, buy things I want. Even though I do not believe in my former religion, I bought a bike accessory that day because, well, it's the holiday and I get to buy stuff. Is this a sin? I'm joining in the festival of a false religion. And although I believe Jesus is my Savior, I feel like the object I bought is tainted with sin due to my buying it on this day. Am I paranoid, or should I "listen to my conscience"? What should I do?