Odds are very high you have simply "inherited" whatever religion your parents (or at least one) followed and, because of simple rote training, that is what you follow too even though the odds are also pretty near 100% that you are not certain you believe "everything" you are told you should. There's a reason for both: it's easy to stick with what one learned and you're a rational, thinking, person so you can easily see (even when you don't necessarily want to) the irrationality of some concepts or dogma of "your" religion.
Given whatever your conclusions from reading about "God" above and the behavior of shamans (and government leaders) that you are familiar with from history and your own observations it must be clear by now that there really is no "God" (or "god[s]) "omnipotent" and "omniscient" and therefore there can be no actual "correct" religion. Particularly one that relies on such powers though there can, of course, be valid teachings in and among religions. You, you, you, and you are the ones that must sort it out each individually though discussion can help.
You have to reason through yourself, perhaps with your little-g god conscience, what makes the most sense to avoid anarchy? What way lies the greatest good? Peace and security for yourself, myself, and all others. I, for one of billions, have brain circuits and reasoning in my head that allow me to understand that my conscience is speaking to me for a greater good than my immediate wants. Some far lesser number of people apparently don't have those brain circuits and falsely ascribe various voices/ideas in their head to external forces; generally, because that's what they've been taught: "God."
All religions were created by humans for the benefit of (at least some specific) humans. Who does an "omniscient" god (capital or little) benefit? Well, it turns out, everyone! Plus maybe the leader and priest classes a little more which would give them some incentive to support "it." After all, if people believe a god sees all (omniscient) and has the power to punish (via omnipotence) anyone doing evil, believing people are less likely to do acts (even less than criminal ones) against others and thus lighten the government law and order load.