If you don't believe in it, you should just do all the actions and move on as normal. This is the 'liturgical' approach to religion and doesn't require belief.
I myself have confessed many times to my priest a lack of belief, but by virtue of the fact I'm there, I'm clearly still practicing. I mean, as a very analytical person, sometimes I feel very skeptical, and sometimes I feel as if God obviously exists. But either way, it doesn't matter because the answer is unknowable by observation, so it's a choice to believe or not. But even if my choice feels strained, being liturgical[1] about it still provides the same benefits.
[1] By liturgical, I mean, doing the actions, like kneeling, standing, bowing, etc. This builds community independent of any belief.
These views are replete with many untestable and non-falsifiable axiomatic assumptions, which must be accepted on "faith."
That word means "accepting the validity of those axioms _despite_ their lack of congruence with reality."