Those aren't similar beliefs. Not even slightly. They're polar opposites.
If you earn it, it's not by grace. If it's grace, you can't earn it.
Also, if you don't hold God to be triune, then you and I don't have the same fundamental concept of who and what God is.
Our beliefs are essentially opposed to each other.
I'd be interested to hear more about what you believe, and why you believe it, if you're interested in taking the time to share it.
Here's a link to a meme I made a while back giving a brief statement of the doctrine of the Trinity:
imgflip.com/i/o6oii
You're welcome to write comments there about that topic (if you have the time and interest).