Sharing Our Innermost Thoughts

I am a master student and now, work on my thesis. Writing, searching, getting feedback, making design for experiment, inviting students to attend this experiment and other things. There is no time to stop. When I work so hard, the students who fill a form to attending this experiment don’t come even if this experiment is online for almost one month. They just sit their own chair and open the zoom link, that’s all. But no one in the session time… why? I don’t understand.
I feel like I’m not getting paid for my hard work. And this upset me…