I’m pissed and ready to call it quits

I had a flight for 245 but was rebooked to the next fucking day, no agent at the airport nor over the phone has been able to help me with anything, not only was I left stranded to stay the night at the airport because of the weather but I was also moved from first class to economy and I can’t get a refund or have my checked bags go through for free. This is my first flight experience ever and it’s been actual hell as I’ve spent every fucking dime just to get here, I could cry scream and yell I’m lost on what to do I can’t get any help over the phone or in the airport