I also weighed myself after pooping
Why would you tell me that you have weighted yourself while pooping?
I'm thinking about joining a weight-lifting club
It is normal to need to weigh yourself but consider that some things might change if you weight yourself at different times and at different situations. It would be more helpful to be consistent.
I'm not really sensitive about the numbers, I'm more about qualitative than quantitative.
Then that's good and I do not really find anything bad about being qualitative than quantitative so you do your best to be in that weight-lifting club. I hope you invite me for any competition you may have and I will surely cheer for you!