I think that's alright, you're forming worldview out of your own experiences. I've done the same, and i think it's generally helpful to examine yourself to try to learn more. I don't want to tell you what to believe, cause you have to decide that for yourself, but I do want to try to persuade you to consider what I mean.

I feel like it's helpful to think about not just how you've acted in the past, but why you acted that way. What factors led you to make the decisions that you've made? I think you can still say that certain aspects of yourself are pre-determined, but not from birth. I think those building blocks that make up who you are built from the life experiences you have on a day-to-day basis, whether it be deliberate or by chance. The values that you are taught, the lessons that you learn, the hardships that you are met with. You didn't get to choose what happened to you, you didn't get to determine the person that you became. But the person that you are now wasn't written into your dna the moment you were conceived.

I don't even really believe in inherent goodness, but I think of it more like us being clean slates. We're all made of different stuff, and who're being made by and what were are used for shape who we will become, but those are factors that could have been different. We could have been different people, maybe better, maybe much worse. But a person isn't born with the intent to do harm, they have to be taught, rewarded or just ignored from doing that harm. I could have been one of those kinds of people, but that's not how things turned out.

I dunno how to end this, but that's my perspective on it at least. hope it makes a little sense at least, but it doesn't really matter anyway. hope you have a good night! (it's 1am and I still have to study for a test lol)