Having a family member who always brag is annoying

So my sister recently started to go to the gym everyday, now she just keep talking about the fact that she do gym all the time, she would turn any small talks into gym, I mean, I played taekwondo for years and I am now a black belt but I don’t talk about that all the time, sometimes it seem that she want to be always characterized as an energetic girl who wake up very early and will never get tired of doing gym.

In case of anyone ask, she is an ISFP.