Fourth week of work got my hours cut again after being told that wouldn’t happen.

I went from working five days a week to only two. It's not livable, I'm trying to save up money and now I want to pull my hair out. My boss told me my hours were only wonky because of new hires but I guess I'm the odd one out because the new schedule came out today and the new hires get four days but I only get two. Awesome. Hate this.