Is it stupid I did this or stupid to worry about it?

I'm graduating from high school but I can't enjoy myself because I worry.... a lot. The thing that is bugging me the most deals with something I got for Christmas. First, let me say that I take my past seriously. I have everything that has influenced my life. My band is my career and it is all because I listened to old records as a kid. My parents sold them when I was a kid but I decided to buy them this past Christmas since it had such a huge impact on my life. Is it stupid I bought them even though I have the songs on my iPod? My mom yelled at me and said it was stupid. Now I worry a lot.