Q: Do you prefer to listen to other's opinions or to make a decision on your own?
A: I feel I have to say that I'm a person who doesn't listen to other's opinions. (What I mean by that is / I mean ) I have live in the way (that / in which) I think I should not others think I should in my whole life, which I think is not always good. I think I need to fix (this side / this feature / this characteristic) of me.
Here, I'm perfectly comfortable using I mean, but I'd like to know if the other one is also possible here.
And I'm more comfortable using that, but at the same time I feel in which is better grammatically. what would you choose?
I think all of these are possible but I feel side is better than the other. What do you think is most natural?