What you’re describing are just feelings, the sense of self-worth. Those are indeed just brain chemistry. What I (and presumably OP) mean by sense of self is the conscious experience of you being a “self” inside your body, separate from the other. This self could still be the same even with a completely different personality and different feelings. Or maybe it wouldn’t be. But the point is that we currently know very little about how we get a consciousness or what it’s made of. This may change in the future, but until then I can’t say we don’t have some form of “soul” with any confidence.
What you’re describing are just feelings, the sense of self-worth. Those are indeed just brain chemistry. What I (and presumably OP) mean by sense of self is the conscious experience of you being a “self” inside your body, separate from the other. This self could still be the same even with a completely different personality and different feelings. Or maybe it wouldn’t be. But the point is that we currently know very little about how we get a consciousness or what it’s made of. This may change in the future, but until then I can’t say we don’t have some form of “soul” with any confidence.