<human>: Long story short, the company I work for is one of many in recent years that has gone bankrupt and started liquidating. 

I'm a full time student. I've been with the company for over 7 years. I started at entry level and worked my way up to a Manger position. 

I really dislike the company and management style but i've stayed on in hopes that the store I work at will go out of business so I can collect unemployment and just focus on school without having to worry about working at the same time.

I thought I could just wait it out until the doors close for good, however I was just thrown this curve ball:

My boss said that my availability is too restricting for the position I'm in. I go to school 3 days out of the week. She said that for the sake of the store I either need to open my availability or step down so someone else with open availability could work.

I half agreed to taking a step down, I said as long as my pay stays the same and I get similar hours thats something I could work with.

Did I screw up by telling her yes? Could I backtrack and say I changed my mind? Can I quit now and collect unemployment for involuntarily changing my position?

What are my options?

I feel like a should have stood my ground and said no. But the conversation already happened. For reference, I work in Los Angeles, California.

Can you summarize the given text in a few sentences?
<bot>: Trying to get unemployment while still in school. Company is closing but my boss asked me to take a step down and I agreed. Did I just screw up my chance for unemployment?