ds1 in yr7 did boys' choir and reading club, that was all. (1 lunchtime, 1 after school).
ds2 in yr7 does boys' choir, chamber choir, singing lesson, piano lesson, Tech club, chess club, reading club, (3 lunchtimes, 3 before school, 2 after school), plus myriad extra rehearsals and concerts ... He wants to do boys dance and drama, but can't fit it in!
They are different personalities and approaches. ds2 doesn't get stacks of homework atm, when he does, he may need to rationalise his activities.
But actually, I think it works for him to be busy: makes him efficient. ds1 sometimes spends hours over relatively straightforward homeworks, but actually most of the time he's just prevaricating. ds2 just doesn't have the luxury to do that, as he has so much else to fit in, and music practice as well.