Option 1

Speak directly and calmly with my roommate, explaining how their noise affects my studies and proposing a revised quiet hours schedule that works for both of us.

Option 2

Report my roommate to the building manager or landlord for violating the quiet hours agreement, requesting their intervention to enforce the rules.

Option 3

Avoid confrontation and try to study in a public library or a friend's place, hoping the situation improves on its own, or just deal with the noise.