You aren’t doing a thing to convince us that isn’t completely true.
You also have a remarkably rigid view of how things “should be”, for example, where you imply that religion and life are the exceptions to all this.
I’m also unsure why you don’t realize that extra-curriculars are something you do for yourself, not to be impressive. If you understood that, the swimming would be a great competitive release along with hours of laps, pushing harder and harder at the wall to get frustrations out. Music can be soothing and rewarding, not just a lot of hard work rushing to and from practice and recital.
And, all of these activities can encompass a rich social life.