If I don't take communion, will it be considered a bad sin?

I'm Lutheran, but my family isn't super religious where we go to church every sunday and pray together and everything. we all try to be good christians and believe in & love God, but we don't really talk about that much. But, just this year I started at Catholic school and we were learning about the Eucharist and how Jesus gave it to us and everything..I know I'm Lutheran and I don't believe exactly what the Catholics believe about Eucharist/Communion, but since Jesus gave it to us and said to remember him by it, is it bad if i dont take communion until im alot older? (im 13 now) because im not in the process of getting confirmed at my church, so taking communion isn't in my near future, but when im older and out of my house i hope to be a covert Catholic and attend weekly mass, and of course accept the Eucharist. but it is it bad in God's eyes not to take communion yet, in your opinion? sorry if this is confusing, answer if you can :) xox