mobile

I'm desperately in need of help. I had a rooted Samsung s4 AT&T , running GoldFinger. It worked perfectly for months. Then today, i kept getting this constant error "Unfortunately, System UI has stopped". Long story short, I spent 5 hours trying to fix it with methods on here yet, nothing would work.
At this point my phone has been factory reset and wiped through SAFESTRAP recovery with the same problem continuing. In safestrap I don't know what I accidentally pressed however, I'm now stuck at the black screen with the white Samsung text and it is stuck there completely. Attachment 3247455

I can only access the stock recovery at this point, I take my phone to my computer, hook it up and try to flash goldfinger again through Odin. . I kept getting a FAILED in Odin , with the error

<ID:0/003> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)

I tried every version of Odin, bought 3 new Samsung official usb cords, my drivers installed and updated yet, nothing would work. This is when I start to mess up, I let the anger get the best of me , I started to download ROM after ROM , stock kernels and recoveries, everything. I used every article and website I could find and after 14 hours I still couldn't fix it at all. I decided to take a break, I then open my downloads folder and saw that I had downloaded a bunch of files , different versions . I'm dyslexic and I tend to mix up numbers a lot. However, I usually read and double check what I download but, because of how angry I was , I completely ignored checking. I SCREWED UP

Now , I can't even access the stock recovery and I'm stuck on this screen that says,
“Firmware upgrade encountered an issue. Please select recovery mode in Kies & try again“. Attachment 3247505
I went on to try KIES's EMERGENCY FIRMWARE RECOVERY . My phone isn't detected , I entered my S/N and tried their Firmware and Initialisation on 2 different computers and nothing worked.
The only thing I can access is Download mode. The text on the left says:

ODIN MODE
PRODUCT NAME: SGH-I337
CURRENT BINARY: SAMSUNG OFFICIAL
SYSTEM STATUS: CUSTOM
KNOX KERNEL LOCK: 0X0
KNOX WARRANTY VOID: 0X0
CSB-CONFIG-LSB: 0X30
WRITE PROTECTION: ENABLE
eMMC BURST MODE ENABLED

I don't know what to do at this point, I NEED my cellphone for my online school, If I'm working late i use it to sign into the school website so I'm not counted as tardy. I don't use many apps either, i use my browser to watch videos and read articles, Youtube , DU booster, MX player, and google drive. my phone is always clean and I used DU booster to clean up my phone regularly, I only stream videos, I download books in pdf format , send them to google drive and delete the original. I really screwed up, I'm hoping someone can help me fix this mess. Thanks for reading.

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