So… Blasphemy vs Heresy now???

. So, If you believe a Church teaching is wrong or immoral this is heresy? Is that correct? So if you “think/believe” something that is pretty tough to change your conscious even if you want to. But if you can’t change what you believe because to do so would be against your conscious even if you want to change, then you can not take the Eucharist? Is that correct? Is that not a problem when no Catholic is allowed to even so much as “think” a Catholic interpretation can not be incorrect without ramifications? While I appreciate God made the Church his word, can the Church never be wrong? Yes, there is scripture stating that the Church is his word and so forth. But if you think something is wrong are you supposed to stop taking the Eucharist even if you want to believe in the Church teaching?