If you believe in God – if you believe to the point that you forgive others and live in the vulnerability that entails, trusting God with all things – then your sins are forgiven and your prayers are answered. No need to bring sacrifices, no need to buy the approval of (too often greedy) religious leaders. The way of Jesus produces fruit. Specifically, the fruit of the Spirit: love, joy, peace, patience, kindness, goodness, gentleness, and self control. Expressions of religion that do not produce these fruits are cursed and will wither. Even ones that use Jesus’ name.
(From my Red Letter Year post 3 years ago about Jesus withering the fig tree.)