Quietly Keeping Faith in a Christian School

Assalamu alaikum, brothers and sisters. I’m a sister who embraced Islam, alhamdulillah, but I have to keep it hidden. I go to a school where most people are Christian, and my family is Christian too. Every day, we have Bible lessons, discuss Jesus, and pray in a Christian way. It makes me really uneasy, and I worry about falling into shirk without meaning to. I fear the day someone asks me directly, ‘Who is your god?’ and I might feel pressured to say Jesus (astaghfirullah). They also make us memorize and recite verses from the Bible. I know Allah can forgive many things, but shirk is something He says He won’t forgive, and that terrifies me. What should I do? Any advice or du’as would mean so much. Jazakum Allahu khayran.