TIFU Got fired for asking for a raise

Not today but a couple weeks ago. I was at this company for over a year (first 3 months with a temp agency). I was a Production Team Member on paper. They had me running the area I was in as a trainer for new temps and as a lead, directing the team what to do. I also was handling inbound orders and parts inventory. Everyone was expected to train new people at this company so I wasn't concerned about that. However, the responsibilities of a lead, handling orders and parts inventory are responsibilities that were put directly on me. I also learned Google Sheets specifically to improve their spreadsheets and make them more user friendly when looking up parts or seeing what we had in inventory. I designed brand new sheets and implemented processes that improved productivity across all of production. After a year, I asked some of my coworkers and they agreed that with everything I do, I should be making much more than I was. I wrote a well thought out and detailed message to my boss explaining why I felt a raise was justified at this time. After meeting with him a couple times, my raise was declined. I was told that my pay rate is competitive. To be honest, I'm not good at handling my emotions when the unexpected happens. So when this information hit me like a freight train, I broke down. I went home and spent the weekend trying to understand. When I got it on Monday, I decided I would do the job I was paid to do and not all the extra that I wasn't being compensated for. I requested a meeting with my boss to explain where I stand on this. After lunch we went into a meeting and I was told I'm not a culture fit and got fired. Now, over 2 weeks and 60+ applications later and I can't even get an interview. TLDR:Requested compensation for additional responsibilities, got declined, "quiet quit", got fired, can't find work now.

UPDATE FOR CLARIFICATION I didn't ever get a chance to tell my boss I was quiet quitting. That day I went about doing my job and nothing extra. I was planning to talk to him about it but instead of getting the chance in the meeting, I got fired.