Thoughts on my Imperfect God Theory?

I'm tossing around what I'm calling the imperfect God theory in my mind and I wanted to run it by this sub to see what people think about it and if anybody here knows about anything that may help me with all this.

For context I'm venturing into religion, Christianity specifically, after not being a part of it for a long time. My grandmother is religious, the type who tells you she's praying for you every time she sees you, but neither of my parents were particularly religious. I'm pretty sure they both believe in God but they don't do church or even really talk about religion at all so they didn't raise me to be religious either. I liked Sunday school as a kid because we got snacks and we coloured pictures of Jesus, but I've been firmly against religion for a long time. Mostly because people in my life have used it for hate against me specifically. I'm queer and I've been told out right that that's a sin and I'm going to hell and I didn't like it.

Recently I've been venturing into religion after deciding to read the Bible. I originally decided to read the Bible because I had never read it and various movies and tv shows I watch had made references to it that I never understood. But I've even taking to attending a (very open and accepting) church every Sunday for the past few weeks and I'm finding I really enjoy it.

One of the biggest things that makes me hesitate on Christianity is that I'm still not sure if I really believe in God and the afterlife or not. Now I'm of the belief that I can choose to believe in this. I can choose to believe in God and an afterlife and all these things if I want to make that choice, and I do want to. But I still get stuck on the concept of God being truly and purely benevolent.

Here's where my mind has been going, given the stories in the bible and all things considered, this is the way my mind has been trying to reconcile God. God may not be truly and purely benevolent. Hear me out, if God made us in his image then realistically any of the things we can extrapolate about humans we can also extrapolate about God. As humans we have the capacity to learn and grow and make choices that can be either good or bad (whether or not you can quantify our actions as good or bad is another philosophical debate but for the purpose of this theory they exist). So if humans can do these things, then God can also learn and grow and change and make choices that are good or bad. And maybe God has made some bad choices, think of the flood in the bible, but I think that God is overall good. Whether being good is intrinsic to his nature as God or whether he actively chooses to be good and be better with every choice he makes I'm unsure (though I'd like to believe he chooses) but ultimately he is always working towards being a better God. And the same can be said in reverse for the devil.

I'm still pretty new to all this so maybe I've got it all wrong. Maybe I just can't understand how God really is and it's supposed to be that way. I'm completely open to hearing what you've got to say about this. I'm genuinely interested in what you guys think about this concept and what resources I can use to try and better understand all of this, so please feel free to tell me what you believe or if you think I'm totally off base.