Thanks for trying it out, glad you're enjoying! Honestly, I'm not hugely into organized sports either (outside a few e-sports), but a team environment always seemed cool to me from a storytelling perspective.
Don't worry about what order to do stuff in - currently there isn't anything you might miss if, for example, you don't have a certain affection level with a certain person before an event. So how you spend your time is your choice! There are totally events locked behind certain prerequisites, but you'll never *miss* one by "spending your days the wrong way", since that's something I've never liked in other games. And if for some reason my stance changes on that, I'll probably put it in the patch notes as a heads up.
Have fun!