It's not that easy.
But, it's also not that hard. Sometimes, we spend so much time dissecting faith that we stop trying to live it. So much time obsessed with the minutia of how could God possibly want this, rather than accepting that what God wants is for us to love others, care for them, hurt with them, and turn towards them. We can spend hours discussing whether God wants us to avoid certain people or obey certain restrictions, rather than seeking to follow His greatest command. His command is for us to love, to spread his name amongst other people, and to remember that it is not by our power that we are saved.
I find that when I start prioritizing this, I stop trying to be a rule follower. I simply become one. When I start trying to enjoy God, I start obeying Him. The more time I spend digging into the Word, the more I want to do what it says.
Sometime we put a "but," where God does not. He does not say that our faith is a complex monster needed to be named, caged, and self-tested. Our faith needs to be flexed; it needs to be reiterated amongst our friends, and practiced among strangers. It needs to be a faith full of love and enjoyment of God. The rules will follow. The rest will follow. The only "But," that God allows is this
"But God, being rich in mercy, because of the great love with which he loved us, made us alive with Christ even when we were dead in transgressions--it is by grace you have been saved."
He did it all. He can handle our dissections and our minutia. Seek to enjoy and to experience God, and he will handle the rulebook.