Hi there Thomas.
I can't possibly read all these replies so l'll just reply to your OP.
"Believe in facts if the balance of the evidence supports them, and for no other reason."
"Believe in values if acting on them will tend to increase the overall surplus of happiness over suffering, and for no other reason"
1. There's more to life than facts and morals / dogma and morals.
Actually l can't think what else there is.
Maybe: the method by which you do things. For example, making prayer books by cutting down acres of forest where nobody lives. Bad method!
2. The evidence might be wrong. A subset of this is confirmation bias.
3. "Values = good IF total happiness increases."
The most troubling thing is our quest for happiness. Must be more discerning. Free crystal meth for all? That's what you're saying dude.
Sex cult? Great. So when you're 90, nobody wants you. You're worth nothing to the sex cult but overall population is okay with it.
SUMMARY: Your embryonic religion is lacking discernment (incliuding: a concept of method), and discernment comes from wisdom and foresight, which in turn come from, je ne sais quoi. I mean, one doesn't one day wake up and decide to obtain these qualities.