I agree. There are things that are part of you, but that you pretty much have to treat as external facts. Some of those are qualities of your utility function, such as risk aversion. I would not even try to change those.

Others are about abilities, like emotional beviour, or akrasia of various kinds. Those you can try to change, but sometimes that is not possible, or would cost more than it is worth, and then you just accept them and concentrate on other things.